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BMW Exhaust Center Sections

Upgrading the center section of your exhaust often removes some restrictions, mainly catalytic converters, giving your vehicle both more power and more sound. We offer several different exhaust brands to get your vehicle sounding exactly the way you want it to!

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Section 1 Rasp Terminator With Crossover - E46 M3

T#:599413

Part#: 1004539

Ships on Sep 30, 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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Valvetronic Designs Extended Chassis Brace - BMW F8X M3 M4 S55 ...

T#:49023059

Part#: BMWF8XCHASBRACE

Ships in 1 Business Day

Sale - Save 15% $ 149.99

This product was last offered at the strikethrough price on
08-25-2026

$ 127.49 USD

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Qty

Sale - Save 15%

$ 149.99

This product was last offered at the strikethrough price on
08-25-2026

$ 127.49 USD

Add to Wish List

Need a new brace to fit your larger exhaust for your F80? This extended chassis brace from Valvetronic Designs provides extra clearance for larger exhaust pipes.

Valvetronic Designs Extended Chassis Brace - BMW G80 M3, G82/G83 M4 S...

T#:53008789

Part#: BMWG8XCHASBRACE

Back Ordered

Sale - Save 10% $ 149.99

This product was last offered at the strikethrough price on
08-25-2026

$ 134.99 USD

Add to Wish List

Qty

Sale - Save 10%

$ 149.99

This product was last offered at the strikethrough price on
08-25-2026

$ 134.99 USD

Add to Wish List

Need a new brace to fit your larger exhaust for your G80 M3 or G82/G83 M4? This extended chassis brace from Valvetronic Designs provides extra clearance for larger exhaust pipes.

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BMW Exhaust Center Sections

Section 1 Rasp Terminator With Crossover - E46 M3

Valvetronic Designs Extended Chassis Brace - BMW F8X M3 M4 S55 ...

Valvetronic Designs Extended Chassis Brace - BMW G80 M3, G82/G83 M4 S...

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