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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Oxygen Sensor Socket - 22mm
Oxygen Sensor Socket - 22mm
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Hazet - Corporate Logo
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.
HJS Exhaust Gasket Ring - E36, E46, Z3, Z4
HJS Exhaust Gasket Ring - E36, E46, Z3, Z4
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HJS - Corporate Logo
T#:388461
Part#: 18111723379
In Stock
$ 10.99 USD
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$ 10.99 USD
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Seals the mid-pipe to the muffler
Valvetronic Designs Universal Valved Muffler Kit - Single Inlet / Dual Outlet - 3.0" (76mm) - 1 Muffler
Valvetronic Designs Universal Valved Muffler Kit - Single Inlet / Dua...
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Valvetronic Designs - Corporate Logo
T#:53149957
Part#: UVM76MMDUALOUTX1
Ships in 1 Business Day
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$ 399.99 USD
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$ 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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Valvetronic Designs Universal Valved Muffler Kit - Single Inlet / Single Outlet - 3.0" (76mm) - 2 Mufflers
Valvetronic Designs Universal Valved Muffler Kit - Single Inlet / Sin...
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Valvetronic Designs - Corporate Logo
T#:53149962
Part#: UVM.89MM.X2
Ships in 4 Business Days
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$ 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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Front Exhaust Kit Right + Left
Front Exhaust Kit Right + Left
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Supersprint - Corporate Logo
T#:14419812
Part#: 044022
Ships on Oct 14, 2026
$ 1,360.99 USD
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$ 1,360.99 USD
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Valvetronic Designs Universal T-Style Valved Muffler Kit - Single Inlet / Dual Outlet - 3.0" (76mm) - 1 Muffler
Valvetronic Designs Universal T-Style Valved Muffler Kit - Single Inl...
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Valvetronic Designs - Corporate Logo
T#:53149963
Part#: UVM76MMTSTYLEX1
Ships in 1 Business Day
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$ 499.99 USD
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$ 499.99 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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Valvetronic Designs Universal Valved Muffler Kit - Single Inlet / Single Outlet - 3.5" (89mm) - 1 Muffler
Valvetronic Designs Universal Valved Muffler Kit - Single Inlet / Sin...
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Valvetronic Designs - Corporate Logo
T#:53149961
Part#: UVM.89MM.X1
Ships in 1 Business Day
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$ 399.99 USD
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$ 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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BMW Xforce Smartbox Varex Muffler ECU Upgrade Module
BMW Xforce Smartbox Varex Muffler ECU Upgrade Module
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XForce - Corporate Logo
T#:28570834
Part#: VKSB01-ECU-MODUL
Ships in 2 Business Days
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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Sale - Save 10%
$ 399.00

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

$ 359.10 USD
Free Shipping on orders $49 and up
Add to Wish List
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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Scorpion Center replacement - E46 M3
Scorpion Center replacement - E46 M3
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Scorpion - Corporate Logo
T#:584760
Part#: SBMR050
Ships in 2 Business Days
$ 831.99 USD
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$ 831.99 USD
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Increase power and sound with this cat back system from Scorpion.
American Racing Headers Long System - BMW E46 M3 - Catted
American Racing Headers Long System - BMW E46 M3 - Catted
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Vivid Racing - Corporate Logo
T#:26504963
Part#: BMW46-01134300LS
Ships in 10 Business Days
$ 3,301.99 USD
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$ 3,301.99 USD
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Genuine BMW Flange Steady - 18107506146 - E46
Genuine BMW Flange Steady - 18107506146 - E46
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Genuine BMW - Corporate Logo
T#:13197
Part#: 18107506146
Ships in 3 Business Days
$ 17.99 USD
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$ 17.99 USD
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Genuine BMW Flange Steady -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M54,M56

Center Exhaust Hanger - E39, E46, E52, E60, E63, E64, E90, E92, E93, F10, Z4
Center Exhaust Hanger - E39, E46, E52, E60, E63, E64, E90, E92, E93,...
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HJS - Corporate Logo
T#:385215
Part#: 18207832991
In Stock
$ 16.99 USD
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$ 16.99 USD
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Located over the center exhaust support

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BMW Mini
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