BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW 3 Series F30 (2012+)

Oxygen Sensor Socket - 22mm

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T#:6181663

Part#: 4680-1

Ships in 1 Business Day

$ 118.99

This product was last offered at the strikethrough price on
05-07-2026

$ 115.99 USD

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$ 115.99 USD

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Properly remove stubborn o2 sensors.

URO Exhaust Control Valve Actuator (Exhaust Flap Actuator)

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T#:54851999

Part#: 18308632154

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$ 127.99 USD

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On modern sport sedans and coupes, backpressure management and acoustic tuning are critical to the driving experience. A failed factory exhaust flap actuator does more than just quiet your car down at the wrong time; it disrupts engineered exhaust flow and triggers performance-robbing fault codes. When your original unit gives out under the stress of high thermal cycles, Turner Motorsport has you covered with this precision replacement from URO Parts.

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Valvetronic Designs Universal Valved Muffler Kit - Single Inlet / Dua...

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T#:53149954

Part#: UVM63MMDUALOUTX2

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$ 599.99 USD

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Unlock the true sound of your engine with the Valvetronic Designs universal valved muffler kit, a premium T304 stainless steel solution that offers the perfect balance between aggressive performance and neighborhood-friendly quiet at the push of a button.

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Supersprint Cat Back

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T#:584262

Part#: 721633KT

Ships on Oct 15, 2026

$ 1,185.99 USD

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Supersprint Turbo Downpipe - 200-Cell Metallic Sport Cat (118mm Inlet...

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T#:387927

Part#: 988641

Ships in 3 Business Days

$ 3,122.99 USD

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Free ground shipping! The factory 235/335/435 N55 exhaust system is pretty wide open with minimal restrictions - except for the catalytic converter. The factory cat is the biggest restriction so any exhaust work to gain more power is going to have to involve replacing it with something freer-flowing. Supersprint's downpipe incorporates a ultra high-flow HJS 200-cell metallic cat that flows considerably more than the stock ceramic part. It also uses bigger 80mm piping to minimize restrictions. Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preferance. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Most Supersprint systems are built with larger diameter piping to improve exhaust flow which helps the engine do less work and make more horsepower! Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation! Supersprint metallic sport catalytic converters are sourced from HJS of Germany. For 30 years HJS has been supplying motorsports teams with sport cats when rules required them. HJS is now a worldwide leader in sport cat technology and performance. Rally cars, German DTM, and Formula 3 all rely on HJS for clean, reliable horsepower. Supersprint works closely with HJS to spec a catalytic converter that is correct for the vehicle and engine package. This allows for a substantial increase in flow but which, at the same time, keeps the environmental specs within European limits. With any high-flow catalytic converter, special software or other work may be required to keep emissions fault codes and check engine lights from displaying. Supersprint catalytic converters are sold for track and other off-road uses only. 200-cell cats have 200 honeycomb cells per square inch. This is much better flow than stock but still does a good job of cleansing the exhaust. Dyno (M135i): +28hp / +17ft-lbs Supersprint downpipe with sport cat section 1, section 2 straight pipes performance muffler This product modifies (but does not remove or defeat) emissions equipment. For this reason this product may not be CARB compliant, and therefore not emissions legal in some states. Consult local laws and regulations in your area. For more information on this product, feel free to contact our sales department.

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Hi-Flow Sports Catted Downpipes - B58

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T#:591396

Part#: SSXBM1039

Ships in 3 Business Days

$ 2,935.99 USD

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With in-house production and engineering in the United Kingdom, they have been designing and developing exhaust systems for over 32 years. This experience has helped put Milltek on the map when it comes to performance exhausts, with offerings that range from Audi/Volkswagen to Porsche, BMW, and even Bentley. But, they don't stop there. Milltek has also made its presence felt in the motorsport community. Through partnerships with various race teams throughout the world, Milltek has gathered feedback on ways to improve their systems from enthusiasts at every level. Constructed of type-304 aircraft grade stainless steel, the quality is top-notch. To take it a step further, Milltek offers a lifetime warranty to the original purchaser.

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BMW Xforce Smartbox Varex Muffler ECU Upgrade Module

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T#:28570834

Part#: VKSB01-ECU-MODUL

Ships in 1 Business Day

Sale - Save 10% $ 399.00

This product was last offered at the strikethrough price on
06-30-2026

$ 359.10 USD

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$ 399.00

This product was last offered at the strikethrough price on
06-30-2026

$ 359.10 USD

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BMW Xforce Smartbox Varex Muffler ECU Upgrade Module is the ideal choice for BMW owners seeking to enhance their vehicle's performance. This innovative module seamlessly integrates with the Varex muffler system, allowing for precise control over exhaust sound and performance. With its easy installation process and versatile functionality, it provides an elevated driving experience for BMW enthusiasts.

Seamless integration with Varex muffler system
Precise control over exhaust sound and performance
Easy installation process
Versatile functionality for enhanced driving experience

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BMW Exhaust Manifold Gasket

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T#:15247105

Part#: 11657643149ELR

In Stock

$ 35.99

This product was last offered at the strikethrough price on
04-10-2026

$ 26.99 USD

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$ 26.99 USD

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Replace your exhaust manifold gasket any time after removal or before reinstallation of the exhaust manifold.

034Motorsport Stainless Steel Racing Catalyst/Downpipe

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T#:26771743

Part#: 034-105-4051

Ships in 2 Business Days

Sale - Save 10% $ 1,158.00

This product was last offered at the strikethrough price on
06-28-2026

$ 1,042.20 USD

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$ 1,158.00

This product was last offered at the strikethrough price on
06-28-2026

$ 1,042.20 USD

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The 034Motorsport Stainless Steel Racing Catalyst is purpose-built to replace the restrictive factory catalytic converter in BMW F2x/F3x B58 vehicles. With this downpipe installed, drivers can expect significant gains in horsepower and torque throughout the powerband. Additionally, turbocharger lag is reduced, throttle response is improved, and the exhaust note is enhanced for a more aggressive tone. By eliminating the primary bottleneck in the stock exhaust system, this upgrade allows owners to fully unlock the potential of their turbocharged engines.

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Valvetronic Designs Universal Valved Muffler Kit - Single Inlet / Dua...

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T#:53149957

Part#: UVM76MMDUALOUTX1

Ships in 1 Business Day

$ 399.99 USD

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Unlock the true sound of your engine with the Valvetronic Designs universal valved muffler kit, a premium T304 stainless steel solution that offers the perfect balance between aggressive performance and neighborhood-friendly quiet at the push of a button.

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