Turner Motorsport BMW Catback Exhaust Systems for BMW 3 Series E46 (1999-2005)

The S54 under the hood of your E46 M3 is a high-revving masterpiece, but factory exhaust setups and many aftermarket options leave you stuck with that dreaded, tinny exhaust rasp. The Turner Motorsport Equal Length Section 1 Exhaust is built to cure the S54's sound once and for all, delivering the aggressive, track-inspired tone your M3 deserved from the factory.

We designed this equal-length section 1 pipe with a proprietary internal resonator that smooths out exhaust pulses, completely killing unwanted rasp while dialing in a throatier, exotic sound profile. Built from heavy-duty 304 stainless steel with precise pie-cut welds, it’s engineered to withstand the thermal stress of aggressive track days and daily street driving without rusting or deteriorating. It’s a 100% direct bolt-on upgrade using new gaskets and hardware, meaning you get pure motorsport sound and performance with an effortless installation.

The E46 M3’s high-revving S54 engine deserves an exhaust note that matches its motorsport pedigree. Developed with precision acoustics in mind, this comprehensive exhaust package delivers the ideal blend of high-rpm rasp control, flow performance, and switchable sound volume. Unleashing exotic tones every time you hit the throttle

By pairing our Resonated Equal Length Section 1 with our Valved Stainless Steel Rear Exhaust, this system equalizes exhaust pulse timing to produce a clean, exotic tone. Open the valves via the included Bremman wireless control kit to bypass restrictors for maximum flow on the track, or close them for subtle street cruising. Engineered for a direct fit, this kit comes complete with track-grade HJS hangers and brand-new exhaust hardware to replace worn factory components.