BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW 3 Series E46 (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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E46 M3 Dinan Free Flow Axle-Back Exhaust
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Dinan - Corporate Logo
T#:389226
Part#: D660-4604
Back Ordered
Sale - Save 10% $ 1,999.99

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

$ 1,799.96 USD
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Sale - Save 10%
$ 1,999.99

This product was last offered at the strikethrough price on
09-28-2026

$ 1,799.96 USD
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The Dinan sport muffler is designed to compliment the E46 M3 and not overpower the driver and passengers with harsh tones. Dinan engineers their exhausts to sound great and be a natural fit to the character of the car as well as produce more power and torque. Dual 3.5" stainless satin black tips engraved with the Dinan logo fill out the rear valence. Annoying highway drone has also been engineered out of the system. Dinan uses only 304 stainless steel in their systems for the maximum corrosion protection. This system replaces the factory rear mufflers at a pre-determined cut point on the stock exhaust, which makes for an easy installation and you can reinstall your original mufflers using factory hardware. Detailed installation instructions are included.

For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere. The Dinan sport muffler is worth 3 point towards your Dinan badge.

Please note: only the passenger-side tips are functional (exhaust exits from the two right side tips only). The driver's side tips are only for aesthetics. Dinan has engineered it this way to minimize drone.

This item fits the following BMWs:
2001-2006 E46 BMW M3

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Bimmerworld - Corporate Logo
T#:599413
Part#: 1004539
Ships on Nov 9, 2026
$ 590.00 USD
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$ 590.00 USD
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Rasp Terminator for the E46 M3 (also for MZ3 and Z4M) is a tuned front section that: Greatly reduce rasp from the S54 engine Balance exhaust pressure for each bank with H-pipe crossover The S54 rasp is excessive and tuning it out requires the right combination of resonators, placement, and tubing size. CPI designed their own section 1 after other designs on the market fell short. Rasp is reduced by approximately 80% on a M3 equipped with aftermarket headers. The latest RTX incorporates an H-pipe crossover that equalizes exhaust pressures in both banks before they merge for section 2. This reduces turbulence and improves exhaust flow. While not designed to gain power and torque, dyno testing showed slight gains with this system. Fitment has also been improved for better ground clearance. Tubing is a full 2.36" (60mm) and 304 stainless steel throughout. It will bolt on to most headers and to any section 2 that uses the factory-style flanges.
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E46 325/330 Dinan Free Flow Axle-Back Exhaust
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Dinan - Corporate Logo
T#:389216
Part#: D660-4602
Ships in 2 Business Days
Sale - Save 10% $ 967.99

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

$ 871.16 USD
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Sale - Save 10%
$ 967.99

This product was last offered at the strikethrough price on
09-28-2026

$ 871.16 USD
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The Dinan sport muffler is designed to compliment the 325/330 and not overpower the driver and passengers with harsh tones. Dinan engineers their exhausts to sound great and be a natural fit to the character of the car as well as produce more power and torque. Dual 2.75" stainless tips engraved with the Dinan logo fill out the rear valence (choose either polished or satin black tips). Annoying highway drone has also been engineered out of the system. Dinan uses only 304 stainless steel in their systems for the maximum corrosion protection. This system replaces the factory rear mufflers at a pre-determined cut point on the stock exhaust, which makes for an easy installation and you can reinstall your original mufflers using factory hardware. Detailed installation instructions are included.

For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere. The Dinan sport muffler is worth 3 point towards your Dinan badge.

This item fits the following BMWs:
2001-2006 E46 BMW 325i 325ci 325xi 330i 330ci 330xi

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Dinan Heavy Duty Exhaust Band Clamp - 2.75" (70mm)
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Dinan - Corporate Logo
T#:38688901
Part#: D662-9228
In Stock
Sale - Save 13% $ 21.99

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

$ 19.14 USD
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Sale - Save 13%
$ 21.99

This product was last offered at the strikethrough price on
09-29-2026

$ 19.14 USD
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Perfect for the do-it-yourself customer looking for a band clamp that allows for a 360º pressure connection, this clamp fits the build. Created from stainless steel, the clamp allows for connecting to 70mm (2.75") via a swedged pipe, and provides even clamping pressure and seal around the entire pipe. This makes for a simple install, or a quick removal should the need arise.
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Bimmerworld - Corporate Logo
T#:39126847
Part#: 1004309
Ships in 5 Business Days
$ 549.99 USD
$ 549.99 USD
Goes from stock headers to BimmerWorld Racing exhaust.
Dinan Heavy Duty Exhaust Band Clamp - 3.00" (76mm)
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Dinan - Corporate Logo
T#:38688902
Part#: D662-9237
Ships on Nov 10, 2026
Sale - Save 13% $ 21.99

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

$ 19.14 USD
Free Shipping
Sale - Save 13%
$ 21.99

This product was last offered at the strikethrough price on
09-29-2026

$ 19.14 USD
Free Shipping
Perfect for the do-it-yourself customer looking for a band clamp that allows for a 360º pressure connection, this clamp fits the build. Created from stainless steel, the clamp allows for connecting to 76mm (3") via a swedged pipe, and provides even clamping pressure and seal around the entire pipe. This makes for a simple install, or a quick removal should the need arise.
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Dinan Double-Walled 4" Clamp-On Exhaust Tip - Polished - 2.75" Inlet ...
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Dinan - Corporate Logo
T#:38688898
Part#: D663-0600-BOX
In Stock
Sale - Save 11% $ 85.99

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

$ 76.73 USD
Free Shipping
Sale - Save 11%
$ 85.99

This product was last offered at the strikethrough price on
09-29-2026

$ 76.73 USD
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Looking to replace old, or damaged, Dinan clamp-on tips or want to customize your exhaust setup with some Dinan flair? Look no further than our polished or black ceramic coated, straight-cut, double-walled exhaust tips that are available in a variety of tip sizes, lengths and inlet diameters! The enlarged tips with classic styling features an engraved Dinan logo on each tip. A combination that will demand attention to any passerby.
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Dinan Double-Walled 4" Clamp-On Exhaust Tip - Black Ceramic - 2.75" I...
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
Dinan - Corporate Logo
T#:38688899
Part#: D663-0601-BOX
Ships on Nov 5, 2026
Sale - Save 10% $ 95.99

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

$ 86.30 USD
Free Shipping
Sale - Save 10%
$ 95.99

This product was last offered at the strikethrough price on
09-29-2026

$ 86.30 USD
Free Shipping
Looking to replace old, or damaged, Dinan clamp-on tips or want to customize your exhaust setup with some Dinan flair? Look no further than our polished or black ceramic coated, straight-cut, double-walled exhaust tips that are available in a variety of tip sizes, lengths and inlet diameters! The enlarged tips with classic styling features an engraved Dinan logo on each tip. A combination that will demand attention to any passerby.
Show More Show Less