2018 BMW M3 Exhaust Parts
Find Your Specific 2018 BMW M3 Exhaust Parts
Below you will find various in-demand BMW Exhaust Parts, components and accessories for your 2018 M3. Advance Auto Parts has popular M3 parts like Exhaust System Kits, Catalytic Converters, Exhaust Manifold and Headers and more. You’ll also find aftermarket and OEM Exhaust Parts for other M3 model years including
2010,
2011,
2012,
2013,
2015,
2016,
2017,
2021,
2022 and more. Select a category of 2018 BMW M3 Exhaust Parts below and start saving instantly.
Popular 2018 BMW M3 Exhaust Parts Categories
Essential Exhaust Parts for 2018 BMW M3s
Rein – Copper Exhaust Nut With Shoulder, M7 (Part No.HWN0101)
from
$2.99
Rein Automotive exhaust nuts are manufactured with premium materials and are direct replacements for the OE.
Product Features:
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Product Features:
- Properly secures exhaust components.
- Direct replacement for correct fitment.
- Manufactured to strict engineering standards/specifications.
Walker – CalCat CARB Universal Catalytic Converter 2" Inlet (ID) 2" Outlet (ID) (Part No.84403)
from
$368.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.
Product Features:
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Product Features:
- CARB COMPLIANT : For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
- SUPERIOR TECHNOLOGY : Optimal high technology wash coat formulated to deliver superior performance (as compared to EPA-compliant converters)
- CONSISTENT PERFORMANCE : Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
- DURABLE : Features stainless-steel body with aluminized pipe and heat shields for durability
- FLEXIBLE SOLUTION : Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
- BUY WITH CONFIDENCE : Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity warranty
MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.52931)
from
$645.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52931. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. MagnaFlow 52931 includes (2) Split Lock Washers, (2) Bolts, (2) Flat Washers, (2) Nuts and interchanges with OE parts 18 32 7 848 044. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.
Product Features:
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Product Features:
- Durable 308 stainless steel MIG welds
- Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
- Simplifies installation with essential gaskets and hardware being included in the box
- Durable 308 stainless steel MIG welds
MagnaFlow – Direct-Fit HM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.50415)
from
$1157.00
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 50415. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. MagnaFlow 50415 includes (3) Flange Gaskets and interchanges with OE parts 11 62 7 832 063, 11 62 7 834 673. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
Product Features:
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Product Features:
- Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
- Simplifies installation with essential gaskets and hardware being included in the box
- Durable 308 stainless steel MIG welds
MagnaFlow – Universal OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.51206)
from
$194.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51206. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion welds greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
Product Features:
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Product Features:
- Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Durable 308 stainless steel MIG welds
- Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
MagnaFlow – Universal California Grade CARB Compliant Catalytic Converter (Part No.418054)
from
$451.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 418054. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.
Product Features:
See More
Product Features:
- Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Durable 308 stainless steel MIG welds
- Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
Walker – Ultra EPA Universal Catalytic Converter – 2" Inlet (ID) 2" Outlet (ID) (Part No.93266)
from
$235.99
Product Features:
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- EPA COMPLIANT – For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA, CO & NY. Legal in ME on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
- KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES – OE-style high-technology wash coat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
- DURABLE – Features stainless-steel body with aluminized pipe and heat shields for durability
- FLEXIBLE SOLUTION – Customizable design features expandable bushings for easy fitment and may require specialized fabrication and welding for installation
- OE-STYLE DESIGN – Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
- BUY WITH CONFIDENCE – Backed by Walker’s 25,000-mile/40,000-kilometer emissions and 50,000-mile/80,000-kilometer structural integrity limited warranty. Visit Walkerexhaust.com for details.
Walker – CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.84205)
from
$206.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.
Product Features:
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Product Features:
- CARB COMPLIANT : For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
- SUPERIOR TECHNOLOGY : Optimal high technology wash coat formulated to deliver superior performance (as compared to EPA-compliant converters)
- CONSISTENT PERFORMANCE : Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
- DURABLE : Features stainless-steel body with aluminized pipe and heat shields for durability
- FLEXIBLE SOLUTION : Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
- BUY WITH CONFIDENCE : Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity warranty
MagnaFlow – Universal Standard Grade Federal / EPA Compliant Catalytic Converter (Part No.94004)
from
$119.99
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94004. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design. With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for pre-OBDII Federally registered vehicles.
Product Features:
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Product Features:
- Durable 308 stainless steel MIG welds
- Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
- Compact, lightweight construction enables installation in confined areas, welding is required
- Durable 308 stainless steel MIG welds
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
Walker – CalCat CARB Universal Catalytic Converter, 2" Inlet (ID) 2"Outlet (ID) (Part No.81301)
from
$401.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.
Product Features:
See More
Product Features:
- SUPERIOR TECHNOLOGY — Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
- CONSISTENT PERFORMANCE — Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
- DURABLE — Features stainless-steel body with aluminized pipe and heat shields for durability
- FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
- BUY WITH CONFIDENCE — Backed by Walker’s emissionsáandástructural integrity warranty.áVisit Walkerexhaust.com for details
Walker – CalCat CARB Universal Catalytic Converter – 2" Inlet (ID) 2" Outlet (ID) (Part No.81101)
from
$459.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.
Product Features:
See More
Product Features:
- CARB COMPLIANT – For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
- SUPERIOR TECHNOLOGY – Optimal high technology wash coat formulated to deliver superior performance (as compared to EPA-compliant converters)
- CONSISTENT PERFORMANCE – Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
- DURABLE – Features stainless-steel body with aluminized pipe and heat shields for durability
- FLEXIBLE SOLUTION – Customizable design features expandable bushings for easy fitment and may require specialized fabrication and welding for installation
- BUY WITH CONFIDENCE – Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity limited warranty
Walker – CalCat Universal Catalytic Converter (Part No.80801)
from
$142.99
Walker an industry leader for import And domestic applications, offers Walker CalCat Universal Catalytic Converters, available for OBDII (1996 And newer) vehicles And Pre-OBD (1995 And older) vehicles, specifically formulated to comply with California Air Resource Board (CARB) regulations. Walker CalCat Catalytic Converters are legal for sale in the state of California, And any state complying with California regulations.
Product Features:
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Product Features:
- Legal for sale in the state of California, complies with C.A.R.B. regulations
- Stainless steel body with aluminized pipe and heat shields for durability
- Expandable bushings for custom installation requirements
- Universal converter may require modification to complete installation
MagnaFlow – Direct-Fit California Grade CARB Compliant Catalytic Converter (Part No.4481664)
from
$2939.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4481664. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. MagnaFlow 4481664 includes (2) Torca Clamps and interchanges with OE parts 18 30 1 744 162. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.
Product Features:
See More
Product Features:
- Durable 308 stainless steel MIG welds
- Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
- Precision stamped collector design for optimal exhaust flow, engine efficiency, and fuel economy
- Simplifies installation with essential gaskets and hardware being included in the box
- Durable 308 stainless steel MIG welds
MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.49800)
from
$2132.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49800. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Catalytic Converter is designed to fit the 2008-2013 BMW M3 4.0L. MagnaFlow 49800 includes (2) Torca Clamps and interchanges with OE parts 18 30 7 840 684, 18 30 7 848 117. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.
Product Features:
See More
Product Features:
- Durable 308 stainless steel MIG welds
- Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
- Precision stamped collector design for optimal exhaust flow, engine efficiency, and fuel economy
- Simplifies installation with essential gaskets and hardware being included in the box
- Durable 308 stainless steel MIG welds
MagnaFlow – Sport Series Exhaust System Kit (Part No.19187)
from
$4199.99
The MagnaFlow Sport Series Cat-Back Performance Exhaust System 19187 enhances your 3.0L 2015-2020 BMW with an aggressive character that is sure to help you stand out from the other BMW you encounter on the street. With its 2.5in. diameter fast-flowing mandrel bent main piping that passes through 1 Straight-Through mufflers before ending in a Quad Split Rear exit with 3.5in. Black Coated Welded-On Double Wall Angle Cut Folded Edge tips, this dyno-proven BMW exhaust system refuses to be ignored. As such, 19187 is tuned to produce our powerful, resonant signature exhaust note at Aggressive exterior and Moderate interior sound levels, so please check to ensure compliance with local noise regulations. The system’s cat-back design replaces all your import’s stock exhaust components from the catalytic converter on back. Extensive 3D scanning and CNC precision robotic manufacturing techniques are used to ensure that your exhaust system fits perfectly with just a simple do-it-yourself installation process. The durable, corrosion resistant stainless steel construction of 19187 is backed by MagnaFlow’s finish warranty and limited construction warranty.
Product Features:
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Product Features:
- High-performance lightweight design
- Dyno-proven performance
- Racing inspired sound
aFe POWER – MACH Force-Xp Axel Back Exhaust System: Polished Tip, 304 Stainless Steel, Gain up to 17 HP (Part No.49-36338-P)
from
$2690.00
Aggressive Sound: A free-flowing, transverse muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque. The muffler is finished with a high-temp powder-coated metallic black finish and a stamped aFe power logo. Exhaust Valve: This axle-back exhaust system incorporates a factory style exhaust valve which uses the factory exhaust valve motor (not included). The valve helps regulate, direct and control the flow of exhaust gases by opening, closing, or partially obstructing passageways depending on throttle position for maximum performance. Simple Installation: This MACH Force-Xp axle-back exhaust system uses factory mounting locations providing stability and a hassle-free installation. Quad 3-1/2″ Stainless Steel Tips: Finishing off this system are Quad 3-1/2″ diameter, 304 stainless steel tips with laser-etched aFe POWER logos. Brushed 304 SS Construction: The performance axle-back exhaust system is constructed of 2-1/2″ to 3″ mandrel-bent, brushed 304 stainless steel tubing for maximum performance, corrosion resistance and strength eliminating cracking.
Product Features:
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Product Features:
- 100% Hand TIG-Welded 304 Stainless Steel Tubing
- Factory Style Exhaust Valve
- Utilizes High Flow Transverse Muffler
- Quad Polished 304 Stainless Steel Tips
aFe POWER – MACH Force-Xp Cat Back Exhaust System: Polished Tip, 304 Stainless Steel, Unleashes All Avail. HP (Part No.49-36311-P)
from
$2239.00
This system is constructed of 2.5 in. diameter, mandrel bent, TIG-welded, 304 stainless steel, brushed finish tubing and uses all factory mounting locations for an approximate 1 hour install time. In recent testing, this exhaust system produced 12 horsepower and 11 lbs. x ft. of torque. This unique system utilizes 3.5 in. diameter 304 polished laser etched quad tips that fit perfectly in your stock bumper cutouts. All aFe systems are engineered and manufactured in our Corona, California manufacturing facility.
Product Features:
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Product Features:
- 2.5 in. Dia. 304 Stainless Steel
- 100% Hand TIG Welded
- Hand Brushed Finish
- Polished Quad Tips
aFe POWER – MACH Force-Xp Axel Back Exhaust System: Black Tip, 304 Stainless Steel, Gain up to 17 HP (Part No.49-36338-B)
from
$2892.00
Aggressive Sound: A free-flowing, transverse muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque. The muffler is finished with a high-temp powder-coated metallic black finish and a stamped aFe power logo. Exhaust Valve: This axle-back exhaust system incorporates a factory style exhaust valve which uses the factory exhaust valve motor (not included). The valve helps regulate, direct and control the flow of exhaust gases by opening, closing, or partially obstructing passageways depending on throttle position for maximum performance. Simple Installation: This MACH Force-Xp axle-back exhaust system uses factory mounting locations providing stability and a hassle-free installation. Quad 3-1/2″ Stainless Steel Tips: Finishing off this system are Quad 3-1/2″ diameter, 304 stainless steel tips with laser-etched aFe POWER logos. Brushed 304 SS Construction: The performance axle-back exhaust system is constructed of 2-1/2″ to 3″ mandrel-bent, brushed 304 stainless steel tubing for maximum performance, corrosion resistance and strength eliminating cracking.
Product Features:
See More
Product Features:
- 100% Hand TIG-Welded 304 Stainless Steel Tubing
- Factory Style Exhaust Valve
- Utilizes High Flow Transverse Muffler
- Quad Gloss Black 304 Stainless Steel Tips
Upgrade your 2018 BMW M3 with Top-Quality Exhaust Parts
When it comes to maintaining or upgrading your 2018 BMW M3, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your BMW or enhancing its overall performance, Exhaust Parts are key to keeping your M3 functioning at its best. At Advance Auto Parts, we offer a wide selection of 7 Exhaust Parts for the 2018 BMW M3, designed to meet your needs without breaking the bank.
From
Exhaust System Kit
replacements to
Catalytic Converters
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Exhaust Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Exhaust Parts for your 2018 BMW M3 at great prices.
Our Exhaust Parts inventory for this model
ranges from just $2.99 to $4,199.99, with
an average price of $1,727.56.
Our 7 Exhaust Parts in stock come from 3 trusted brands, so you’re sure to find the right part for your 2018 BMW M3 without overspending.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Exhaust Part upgrades. Explore related part types like Oil and Lubricants, Fluids and Chemicals
and more to make sure your 2018 BMW M3 is always ready to roll. We’re committed to providing you with everything you need to keep your M3 in top shape, all in one place.
Start shopping confidently below for your 2018 BMW M3!
Best-Selling Exhaust System Kits for 2018 BMW M3s
Enhance the driving experience in your BMW with 3 quality Exhaust System Kit components, starting at $2,690.00.
MagnaFlow – Sport Series Exhaust System Kit (Part No.19187)
from
$4199.99
The MagnaFlow Sport Series Cat-Back Performance Exhaust System 19187 enhances your 3.0L 2015-2020 BMW with an aggressive character that is sure to help you stand out from the other BMW you encounter on the street. With its 2.5in. diameter fast-flowing mandrel bent main piping that passes through 1 Straight-Through mufflers before ending in a Quad Split Rear exit with 3.5in. Black Coated Welded-On Double Wall Angle Cut Folded Edge tips, this dyno-proven BMW exhaust system refuses to be ignored. As such, 19187 is tuned to produce our powerful, resonant signature exhaust note at Aggressive exterior and Moderate interior sound levels, so please check to ensure compliance with local noise regulations. The system’s cat-back design replaces all your import’s stock exhaust components from the catalytic converter on back. Extensive 3D scanning and CNC precision robotic manufacturing techniques are used to ensure that your exhaust system fits perfectly with just a simple do-it-yourself installation process. The durable, corrosion resistant stainless steel construction of 19187 is backed by MagnaFlow’s finish warranty and limited construction warranty.
Product Features:
See More
Product Features:
- High-performance lightweight design
- Dyno-proven performance
- Racing inspired sound
aFe POWER – MACH Force-Xp Axel Back Exhaust System: Black Tip, 304 Stainless Steel, Gain up to 17 HP (Part No.49-36338-B)
from
$2892.00
Aggressive Sound: A free-flowing, transverse muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque. The muffler is finished with a high-temp powder-coated metallic black finish and a stamped aFe power logo. Exhaust Valve: This axle-back exhaust system incorporates a factory style exhaust valve which uses the factory exhaust valve motor (not included). The valve helps regulate, direct and control the flow of exhaust gases by opening, closing, or partially obstructing passageways depending on throttle position for maximum performance. Simple Installation: This MACH Force-Xp axle-back exhaust system uses factory mounting locations providing stability and a hassle-free installation. Quad 3-1/2″ Stainless Steel Tips: Finishing off this system are Quad 3-1/2″ diameter, 304 stainless steel tips with laser-etched aFe POWER logos. Brushed 304 SS Construction: The performance axle-back exhaust system is constructed of 2-1/2″ to 3″ mandrel-bent, brushed 304 stainless steel tubing for maximum performance, corrosion resistance and strength eliminating cracking.
Product Features:
See More
Product Features:
- 100% Hand TIG-Welded 304 Stainless Steel Tubing
- Factory Style Exhaust Valve
- Utilizes High Flow Transverse Muffler
- Quad Gloss Black 304 Stainless Steel Tips
aFe POWER – MACH Force-Xp Axel Back Exhaust System: Polished Tip, 304 Stainless Steel, Gain up to 17 HP (Part No.49-36338-P)
from
$2690.00
Aggressive Sound: A free-flowing, transverse muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque. The muffler is finished with a high-temp powder-coated metallic black finish and a stamped aFe power logo. Exhaust Valve: This axle-back exhaust system incorporates a factory style exhaust valve which uses the factory exhaust valve motor (not included). The valve helps regulate, direct and control the flow of exhaust gases by opening, closing, or partially obstructing passageways depending on throttle position for maximum performance. Simple Installation: This MACH Force-Xp axle-back exhaust system uses factory mounting locations providing stability and a hassle-free installation. Quad 3-1/2″ Stainless Steel Tips: Finishing off this system are Quad 3-1/2″ diameter, 304 stainless steel tips with laser-etched aFe POWER logos. Brushed 304 SS Construction: The performance axle-back exhaust system is constructed of 2-1/2″ to 3″ mandrel-bent, brushed 304 stainless steel tubing for maximum performance, corrosion resistance and strength eliminating cracking.
Product Features:
See More
Product Features:
- 100% Hand TIG-Welded 304 Stainless Steel Tubing
- Factory Style Exhaust Valve
- Utilizes High Flow Transverse Muffler
- Quad Polished 304 Stainless Steel Tips
Most Popular 2018 BMW M3 Catalytic Converters
Customize your BMW with 3 Catalytic Converters products
like Catalytic Converters, all
priced under $1,466.99.
MagnaFlow – Universal OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.51206)
from
$194.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51206. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion welds greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
Product Features:
See More
Product Features:
- Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Durable 308 stainless steel MIG welds
- Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.52925)
from
$1466.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52925. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Catalytic Converter is designed to fit the 2015-2018 BMW M3 3.0L & 2015-2020 BMW M4 3.0L. MagnaFlow 52925 includes (2) Torca Clamps and interchanges with OE parts 18 30 7 851 178, 18 30 8 094 373. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.
Product Features:
See More
Product Features:
- Simplifies installation with essential gaskets and hardware being included in the box
- Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
- OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
- Simplifies installation with essential gaskets and hardware being included in the box
- Durable 308 stainless steel MIG welds
MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.52931)
from
$645.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52931. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. MagnaFlow 52931 includes (2) Split Lock Washers, (2) Bolts, (2) Flat Washers, (2) Nuts and interchanges with OE parts 18 32 7 848 044. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.
Product Features:
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Product Features:
- Durable 308 stainless steel MIG welds
- Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
- Simplifies installation with essential gaskets and hardware being included in the box
- Durable 308 stainless steel MIG welds
Top Picks for 2018 BMW M3 Exhaust Manifold and Headers
Upgrade BMW M3s with top-quality Exhaust Manifold and Headers parts, including 1 OEM and aftermarket selections for your 2018 model.
Rein – Copper Exhaust Nut With Shoulder, M7 (Part No.HWN0101)
from
$2.99
Rein Automotive exhaust nuts are manufactured with premium materials and are direct replacements for the OE.
Product Features:
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Product Features:
- Properly secures exhaust components.
- Direct replacement for correct fitment.
- Manufactured to strict engineering standards/specifications.
FAQs for 2018 BMW M3 Exhaust Parts
Which Exhaust Parts are best-sellers for 2018 BMW M3s?
Out of 7 Exhaust Parts that fit 2018 BMW M3s, the following parts are the top sellers:
- Universal OEM Grade Federal / EPA Compliant Catalytic Converter (10605289) – $194.99
- Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter (12250600) – $645.99
- MACH Force-Xp Axel Back Exhaust System: Black Tip, 304 Stainless Steel, Gain up to 17 HP (12265637) – $2,892.00
What’s the price range for 2018 BMW M3 Exhaust Parts?
Exhaust Part prices for the 2018 BMW M3 start at $2.99 and go up to $4,199.99 for the most premium parts.
What’s the average price of a Exhaust Part for a 2018 BMW M3?
The average price for Exhaust Parts for the 2018 BMW M3 is $1,727.56. Keep in mind the variety of part types within our Exhaust Part category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Exhaust Parts for other BMW M3 model years?
What are the cheapest Exhaust Parts for my 2018 BMW M3?
The cheapest 2018 BMW M3 Exhaust Parts we carry in stock are:
- Copper Exhaust Nut With Shoulder, M7 (50221555) – $2.99
- Universal OEM Grade Federal / EPA Compliant Catalytic Converter (10605289) – $194.99
- Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter (12250600) – $645.99
- Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter (12250711) – $1,466.99
- MACH Force-Xp Axel Back Exhaust System: Polished Tip, 304 Stainless Steel, Gain up to 17 HP (12266116) – $2,690.00
What types of Exhaust Parts do you sell for my 2018 BMW M3?
As of 3/1/26, these are some of the most in-demand types of Exhaust Parts for a 2018 BMW M3:
Can I get help with 2018 BMW M3 Exhaust Part orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about BMW Exhaust Parts and more.
What is your return policy for BMW M3 Exhaust Parts?
Advance Auto Parts keeps returns simple. For new BMW M3 Exhaust Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
