BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW E46 M3 S54 (1999-2005)

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Performance exhaust options from the best BMW aftermarket producers and the most reliable replacement maintenance parts are all at Turner Motorsport. Over time, factory exhaust on the cleanest examples of BMW heritage shows their age. Our factory replacement exhausts are just what you need to keep your favorite car in showroom condition or finish off your restoration. If you are looking for a bump in sound and power, you can also find our performance options like Headers, Downpipes, and Mufflers from Corsa, DINAN, and others on this page.

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Valvetronic Designs Universal Valved Muffler Kit - Single Inlet / Single Outlet - 3.0" (76mm) - 2 Mufflers
Valvetronic Designs Universal Valved Muffler Kit - Single Inlet / Sin...
Valvetronic Designs - Corporate Logo
T#:53149960
Part#: UVM.76MM.X2
Ships in 2 Business Days
New Item
$ 599.99 USD
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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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Direct-Fit Catalytic Converter - Rear
Direct-Fit Catalytic Converter - Rear
Magnaflow - Corporate Logo
T#:384381
Part#: 50416
Back Ordered
$ 1,042.00 USD
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$ 1,042.00 USD
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The catalytic converter is an emissions device that converts the exhaust gasses exiting the engine into a less toxic substance. This is achieved through the internal honeycomb monolith, washcoat, and the catalyst itself that commonly consists of a mix of precious metals. Unfortunately the catalytic converters do not last forever, and can be damaged if the engine is running too rich on fuel. If you're getting an oxygen sensor fault, and the sensor is ok, the likely cause is a failed catalytic converter. Relieve worry about an upcoming emissions test and replace your faulty or damaged catalytic converter. Stainless steel construction Federal Emissions compliant design Formulated for Gas and Diesel Applications
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Direct-Fit Catalytic Converter - Front E46 Z3 S54 3.2L Engine
Direct-Fit Catalytic Converter - Front E46 Z3 S54 3.2L Engine ...
Magnaflow - Corporate Logo
T#:375526
Part#: 50415
Back Ordered
$ 1,156.00 USD
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$ 1,156.00 USD
Free Shipping
Add to Wish List
The catalytic converter is an emissions device that converts the exhaust gasses exiting the engine into a less toxic substance. This is achieved through the internal honeycomb monolith, washcoat, and the catalyst itself that commonly consists of a mix of precious metals. Unfortunately the catalytic converters do not last forever, and can be damaged if the engine is running too rich on fuel. If you're getting an oxygen sensor fault, and the sensor is ok, the likely cause is a failed catalytic converter. Relieve worry about an upcoming emissions test and replace your faulty or damaged catalytic converter. Stainless steel construction Federal Emissions compliant design Formulated for Gas and Diesel Applications
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Valvetronic Designs Single Exhaust Tip - 3.5" - Forged Carbon Fiber
Valvetronic Designs Single Exhaust Tip - 3.5" - Forged Carbon Fiber ...
Valvetronic Designs - Corporate Logo
T#:20320748
Part#: VTTPSLVE3035FC
Ships in 6 Business Days
$ 89.99

This product was last offered at the strikethrough price on
05-19-2026

$ 83.99 USD
Free Shipping on orders $49 and up
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$ 83.99 USD
Free Shipping on orders $49 and up
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The perfect cherry on top! Our selection of Valvetronic Designs Exhaust Tips gives your vehicle that perfect look, and with various styles and finishes, the customization is endless. Whether you're looking to upgrade your full system or add a set to your universal kit, these exhaust tips help ensure your vehicle looks as good as it sounds!
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Direct Fit Catalytic Converter Replacement System
Direct Fit Catalytic Converter Replacement System
AFE - Corporate Logo
T#:584535
Part#: 47-46304
Back Ordered
20% off MSRP $ 3,886.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,109.00 USD
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20% off MSRP
$ 3,886.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,109.00 USD
Add to Wish List
Keep your emissions in check
Valvetronic Designs Universal Valved Muffler Kit - Single Inlet / Single Outlet - 3.0" (76mm) - 1 Muffler
Valvetronic Designs Universal Valved Muffler Kit - Single Inlet / Sin...
Valvetronic Designs - Corporate Logo
T#:53149959
Part#: UVM.76MM.X1
Ships in 2 Business Days
New Item
$ 399.99 USD
Free Shipping
Add to Wish List
$ 399.99 USD
Free Shipping
Add to Wish List
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.
Show More Show Less

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