1985 BMW 635CSi Exhaust Parts

Please Select your Vehicle to See Exact Fit Parts

Essential Exhaust Parts for 1985 BMW 635CSis

BRExhaust – Exhaust System Hanger (Part No.255-766)

Exhaust System Hanger

from

$7.49
BRExhaust exhaust insulator mounts are high-quality replacements for original equipment hangers-designed to fit right the first time. They’re manufactured from premium rubber and available for a variety of car, truck, and van applications. BRExhaust exhaust insulator mounts will help keep your components in the right position, resulting in a longer lifespan for your exhaust system.

Product Features:
  • Designed to facilitate hassle-free exhaust repair
  • Precise fitment
  • Manufactured from quality materials to ensure maximum durability
  • OE-style design for quality fit
  • Secure sealing for superior durability
  • Manufactured from quality materials to ensure maximum durability
  • Reduced vibration
See More

Walker – CalCat Universal Converter (Part No.80833)

CalCat Universal Converter

from

$151.99
Walker®, an industry leader for many popular European, Asian and North American vehicles, 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® Universal Catalytic Converters feature OE-style hangers, brackets, routings and heat shields allowing quick and easy installation of direct-fit units. OE expertise delivers application-engineered parts, providing the best fit and performance for even the most challenging emissions issues, while premium substrate material and a high-technology wash coat ensure exceptional oxygen storage capacity. Walker® CalCat® Catalytic Converters are legal for sale in the state of California, and any state complying with California regulations.

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
  • 5-year/50,000-mile catalytic performance and structural integrity warranty
See More

MagnaFlow – Universal Standard Grade Federal / EPA Compliant Catalytic Converter (Part No.94008)

Universal Standard Grade Federal / EPA Compliant Catalytic Converter

from

$124.99
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94008. 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:
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • 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
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
See More

Walker – CalCat CARB Universal Catalytic Converter, 2.5" Inlet (ID) 2"Outlet (ID) (Part No.81333)

CalCat CARB Universal Catalytic Converter, 2.5" Inlet (ID) 2"Outlet (ID)

from

$574.99
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:
  • 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. May require specialized fabrication and welding for installation
  • BUY WITH CONFIDENCE — Backed by Walker’s emissionsáandástructural integrity warranty.áVisit Walkerexhaust.com for details
See More

MagnaFlow – Universal Standard Grade Federal / EPA Compliant Catalytic Converter (Part No.94007)

Universal Standard Grade Federal / EPA Compliant Catalytic Converter

from

$124.99
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94007. 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:
  • 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
  • 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
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
See More

MagnaFlow – Universal California Grade CARB Compliant Catalytic Converter (Part No.3322037)

Universal California Grade CARB Compliant Catalytic Converter

from

$740.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 3322037. 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:
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
  • Durable 308 stainless steel MIG welds
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Compact, lightweight construction enables installation in confined areas, welding is required
See More

Walker – CalCat CARB Universal Catalytic Converter – 2.5" Inlet (ID) 2" Outlet (ID) (Part No.81133)

CalCat CARB Universal Catalytic Converter - 2.5" Inlet (ID) 2" Outlet (ID)

from

$506.99
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:
  • 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
See More

Flowtech – Terminator; Exhaust Tips (Part No.59905FLT)

Terminator; Exhaust Tips

from

$93.99


Product Features:
  • Show Quality Chrome Platinum
  • Durable Black Finish
  • Can Be Welded Or Clamped
  • Complete The System
  • Glass-Packed Resonators
See More

Walker – Exhaust Pipe Flange Gasket (Part No.31365)

Exhaust Pipe Flange Gasket

from

$5.39
Complete your exhaust repair with Walker gaskets and flanges. Available in a variety of styles and sizes, they’re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of styles and sizes for a quality vehicle repair
  • HEAT RESISTANT – Designed to resist heat for long-lasting performance
  • PREMIUM MATERIALS – Made from high-quality materials for durability and long life
  • ENGINEERING EXPERTISE – Parts are reviewed and validated and approved by Walker engineers through rigorous research and development
  • REAL-WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EASIER TO INSTALL – Featuring slotted bolt holes (where applicable) for easy installation, gasket slips into place
  • BETTER TOGETHER – Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
See More

Upgrade your 1985 BMW 635CSi with Top-Quality Exhaust Parts

When it comes to maintaining or upgrading your 1985 BMW 635CSi, 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 635CSi functioning at its best. At Advance Auto Parts, we offer a wide selection of 9 Exhaust Parts for the 1985 BMW 635CSi, designed to meet your needs without breaking the bank. From Exhaust Muffler replacements to Exhaust Hangers 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 1985 BMW 635CSi at great prices. Our Exhaust Parts inventory for this model ranges from just $5.39 to $983.99, with an average price of $354.53. Our 9 Exhaust Parts in stock come from 4 trusted brands, so you’re sure to find the right part for your 1985 BMW 635CSi 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 Batteries and Chargers, Oil and Lubricants and more to make sure your 1985 BMW 635CSi is always ready to roll. We’re committed to providing you with everything you need to keep your 635CSi in top shape, all in one place. Start shopping confidently below for your 1985 BMW 635CSi!

Best-Selling Exhaust Mufflers for 1985 BMW 635CSis

Enhance the driving experience in your BMW with 1 quality Exhaust Muffler components, starting at $983.99.

Walker – Quiet-Flow Direct Fit Exhaust Muffler Assembly, 1.875" Inlet (ID) 1.5" Outlet (OD) (Part No.57008)

Quiet-Flow Direct Fit Exhaust Muffler Assembly, 1.875" Inlet (ID) 1.5" Outlet (OD)

from

$983.99
Combining industry-leading coverage with a direct fit OE-style replacement, Walker® Quiet-Flow® muffler assemblies deliver a precision fit, superior flow and OE-style sound. Quiet-Flow muffler assemblies are available for domestic and foreign vehicles.

Product Features:
  • EASY TO INSTALL — Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and/or welding
  • RESISTS CORROSION — Internal drainage system helps reduce moisture collection
  • BUILT TO LAST — Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • PREMIUM ACOUSTIC CONTROL — OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
  • DESIGN VALIDATED — Acoustic and flow tested for quality OE-style sound you can count on
  • BUY WITH CONFIDENCE — Comes with Walker’s limited warranty and exclusive Safe and Sound® Guarantee. Visit Walkerexhaust.com for details.
See More

Most Popular 1985 BMW 635CSi Exhaust Hangers

Customize your BMW with 1 Exhaust Hangers products like Exhaust Hangers and Hardware, all priced under $7.49.

BRExhaust – Exhaust System Hanger (Part No.255-766)

Exhaust System Hanger

from

$7.49
BRExhaust exhaust insulator mounts are high-quality replacements for original equipment hangers-designed to fit right the first time. They’re manufactured from premium rubber and available for a variety of car, truck, and van applications. BRExhaust exhaust insulator mounts will help keep your components in the right position, resulting in a longer lifespan for your exhaust system.

Product Features:
  • Designed to facilitate hassle-free exhaust repair
  • Precise fitment
  • Manufactured from quality materials to ensure maximum durability
  • OE-style design for quality fit
  • Secure sealing for superior durability
  • Manufactured from quality materials to ensure maximum durability
  • Reduced vibration
See More

Top Picks for 1985 BMW 635CSi Catalytic Converters

Upgrade BMW 635CSis with top-quality Catalytic Converters parts, including 6 OEM and aftermarket selections for your 1985 model.

Walker – CalCat Universal Converter (Part No.80833)

CalCat Universal Converter

from

$151.99
Walker®, an industry leader for many popular European, Asian and North American vehicles, 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® Universal Catalytic Converters feature OE-style hangers, brackets, routings and heat shields allowing quick and easy installation of direct-fit units. OE expertise delivers application-engineered parts, providing the best fit and performance for even the most challenging emissions issues, while premium substrate material and a high-technology wash coat ensure exceptional oxygen storage capacity. Walker® CalCat® Catalytic Converters are legal for sale in the state of California, and any state complying with California regulations.

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
  • 5-year/50,000-mile catalytic performance and structural integrity warranty
See More

MagnaFlow – Universal Standard Grade Federal / EPA Compliant Catalytic Converter (Part No.94007)

Universal Standard Grade Federal / EPA Compliant Catalytic Converter

from

$124.99
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94007. 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:
  • 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
  • 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
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
See More

Walker – Exhaust Pipe Flange Gasket (Part No.31365)

Exhaust Pipe Flange Gasket

from

$5.39
Complete your exhaust repair with Walker gaskets and flanges. Available in a variety of styles and sizes, they’re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of styles and sizes for a quality vehicle repair
  • HEAT RESISTANT – Designed to resist heat for long-lasting performance
  • PREMIUM MATERIALS – Made from high-quality materials for durability and long life
  • ENGINEERING EXPERTISE – Parts are reviewed and validated and approved by Walker engineers through rigorous research and development
  • REAL-WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EASIER TO INSTALL – Featuring slotted bolt holes (where applicable) for easy installation, gasket slips into place
  • BETTER TOGETHER – Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
See More

Walker – CalCat CARB Universal Catalytic Converter – 2.5" Inlet (ID) 2" Outlet (ID) (Part No.81133)

CalCat CARB Universal Catalytic Converter - 2.5" Inlet (ID) 2" Outlet (ID)

from

$506.99
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:
  • 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
See More

MagnaFlow – Universal California Grade CARB Compliant Catalytic Converter (Part No.3322037)

Universal California Grade CARB Compliant Catalytic Converter

from

$740.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 3322037. 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:
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
  • Durable 308 stainless steel MIG welds
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Compact, lightweight construction enables installation in confined areas, welding is required
See More

Walker – CalCat CARB Universal Catalytic Converter, 2.5" Inlet (ID) 2"Outlet (ID) (Part No.81333)

CalCat CARB Universal Catalytic Converter, 2.5" Inlet (ID) 2"Outlet (ID)

from

$574.99
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:
  • 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. May require specialized fabrication and welding for installation
  • BUY WITH CONFIDENCE — Backed by Walker’s emissionsáandástructural integrity warranty.áVisit Walkerexhaust.com for details
See More

In-Demand Exhaust Tips for 1985 BMW 635CSis

Select from 1 premium Exhaust Tips parts for your 1985 BMW 635CSi.

Flowtech – Terminator; Exhaust Tips (Part No.59905FLT)

Terminator; Exhaust Tips

from

$93.99


Product Features:
  • Show Quality Chrome Platinum
  • Durable Black Finish
  • Can Be Welded Or Clamped
  • Complete The System
  • Glass-Packed Resonators
See More

FAQs for 1985 BMW 635CSi Exhaust Parts

Which Exhaust Parts are best-sellers for 1985 BMW 635CSis?

Out of 9 Exhaust Parts that fit 1985 BMW 635CSis, the following parts are the top sellers:

What’s the price range for 1985 BMW 635CSi Exhaust Parts?

Exhaust Part prices for the 1985 BMW 635CSi start at $5.39 and go up to $983.99 for the most premium parts.

What’s the average price of a Exhaust Part for a 1985 BMW 635CSi?

The average price for Exhaust Parts for the 1985 BMW 635CSi is $354.53. 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 635CSi model years?

Yes, we currently carry Exhaust Parts for 3 model years of BMW 635CSis between 1986 and 1989. Exhaust Parts are bought most frequently for the following model years: 1989, 1988, 1987, and 1986.

What are the cheapest Exhaust Parts for my 1985 BMW 635CSi?

The cheapest 1985 BMW 635CSi Exhaust Parts we carry in stock are:

What are the top-rated Exhaust Parts that fit the 1985 BMW 635CSi?

Out of 11 reviews by customers, our 1985 BMW 635CSi Exhaust Parts have an average customer rating of . These are some of the highest-rated Exhaust Part types for the 1985 BMW 635CSi and their top-rated products:

What types of Exhaust Parts do you sell for my 1985 BMW 635CSi?

As of 3/1/26, these are some of the most in-demand types of Exhaust Parts for a 1985 BMW 635CSi:

Can I get help with 1985 BMW 635CSi 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 635CSi Exhaust Parts?

Advance Auto Parts keeps returns simple. For new BMW 635CSi Exhaust Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.