BMW 318i Mufflers

Your BMW 318i will be happy to know that the search for the right Mufflers you’ve been looking for is over! Advance Auto Parts has 2 different Mufflers for your vehicle, ready for shipping or in-store pick up. The best part is, our BMW 318i Mufflers start from as little as $227.99.

When it comes to your BMW 318i, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Mufflers brands so you can shop with complete confidence. Some of our top Mufflers brands are Flowmaster Inc. and BRExhaust. We’re sure you will get the right product to keep that 318i running for a long time.

Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Mufflers for your 318i, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!

Compare 6 BMW Mufflers

Walker – SoundFX Muffler, Universal/ Fabrication Needed (Part No.17820)

SoundFX Muffler, Universal/ Fabrication Needed

from

$88.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX® universal mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION — Aluminized steel construction and internal drainage system helps reduce corrosion
  • 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
  • FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • FACTORY SOUND — Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER — Designed and tested to extend muffler life
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Flowmaster Inc. – DBX Muffler, 3in Center Inlet 3in Center Outlet, 14in long, Non-Reversible, Moderate Sound (Part No.13014310)

DBX Muffler, 3in Center Inlet 3in Center Outlet, 14in long, Non-Reversible, Moderate Sound

from

$227.99
dBX series mufflers – this Laminar Flow internal configuration muffler features the revolutionary HP core design delivering excellent sound control for a wide variety of engine types where vehicle under-chassis space is limited. Utilizing cool shell technology to minimize radiant heat from the muffler body, they are perfect for sport compact imports as well as muscle cars and other performance applications. Constructed with 409S stainless steel internal components and wrapped with a proprietary insulation material and finally a polishable 304 stainless steel casing, these mufflers are as attractive as they are functional delivering a moderate to aggressive tone.
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Flowmaster Inc. – DBX Muffler, 2.25in Center Inlet 2.25in Center Outlet, 14in long, Non-Reversible, Moderate Sound (Part No.12414310)

DBX Muffler, 2.25in Center Inlet 2.25in Center Outlet, 14in long, Non-Reversible, Moderate Sound

from

$227.99
dBX series mufflers – this Laminar Flow internal configuration muffler features the revolutionary HP core design delivering excellent sound control for a wide variety of engine types where vehicle under-chassis space is limited. Utilizing cool shell technology to minimize radiant heat from the muffler body, they are perfect for sport compact imports as well as muscle cars and other performance applications. Constructed with 409S stainless steel internal components and wrapped with a proprietary insulation material and finally a polishable 304 stainless steel casing, these mufflers are as attractive as they are functional delivering a moderate to aggressive tone.
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Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.46748)

Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed

from

$379.99
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
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BRExhaust – Original Equipment Style Direct-Fit Muffler Assembly (Part No.286-181)

Original Equipment Style Direct-Fit Muffler Assembly

from

$357.99
This BRExhaust muffler assembly is engineered to provide OE-style performance and maintain a factory-like sound. The direct-fit configuration allows for easy, bolt-on installation with no modifications required. The component is designed to offer corrosion protection in addition to optimal noise reduction and low backpressure. Built from 16-gauge steel tubing and fully aluminized, these mufflers feature a OE-style direct fit for your import or domestic¿while the interior design of the muffler box ensures quiet performance.

Product Features:
  • Aluminized steel construction for maximum durability
  • Constructed to reduce flex and withstand vehicle vibration
  • Easy installation and perfect fitment
  • Thicker hangers for added strength
  • External drain hole extends muffler life by allowing moisture to escape
  • Uniform flow holes provide even distribution of exhaust flow through box interior
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Walker – SoundFX Muffler, Universal/ Fabrication Needed (Part No.17816)

SoundFX Muffler, Universal/ Fabrication Needed

from

$241.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX® universal mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION — Aluminized steel construction and internal drainage system helps reduce corrosion
  • 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
  • FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • FACTORY SOUND — Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER — Designed and tested to extend muffler life
See More
View Product

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