Home
Exhaust

BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW 3 Series E46 (1999-2005)

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.

Sub-Categories

Sort By:

Scorpion Cat-Back Exhaust System - E46 M3

T#:584773

Part#: SBM050

Ships in 2 Business Days

$ 1,630.99 USD

Add to Wish List

Qty

$ 1,630.99 USD

Add to Wish List

This cat back system from Scorpion features larger diameter piping for a freer flowing exhaust pathway.

Scorpion Rear Muffler - E46 323/328

T#:584235

Part#: SBMB052

Ships in 2 Business Days

$ 512.99 USD

Add to Wish List

Qty

$ 512.99 USD

Add to Wish List

This rear muffler from Scorpion features larger diameter piping for a freer flowing exhaust pathway.

Scorpion Rear Muffler - E46 320/325/330

T#:584785

Part#: SBMB048

Ships in 1 Business Day

$ 569.99 USD

Add to Wish List

Qty

$ 569.99 USD

Add to Wish List

Provides a louder tone while still remaining civilized.

Section 1 Rasp Terminator With Crossover - E46 M3

T#:599413

Part#: 1004539

Ships on Nov 9, 2026

$ 590.00 USD

Add to Wish List

Qty

$ 590.00 USD

Add to Wish List

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.

Show More Show Less