About Supersprint Catalytic Converters
High horse power performance applications require the durability and free flow characteristics of metallic racing catalytic converters. Turning up the power or using you car on the track will quickly melt down and damage your O.E. ceramic catalytic converter. Each racing converter is manufactured to racing specifications utilizing a high heat resistant metallic core. The reduced cell count from the O.E. 400 C.P.S.I. to a high flow 200 C.P.S.I. makes the Supersprint racing converters the most free flowing on the market today. All components are 100% stainless steel, and all tubing is mandrel bent to assure you the highest flow volume.
All Supersprint alternate connecting pipes are mandrel bent for maximum performance. The alternate pipe is designed to replace a resonator that is standard in that same position. This option will increase sound slightly and reduce overall system cost. The polished pipes are manufactured from 100% 304 stainless steel, while the black pipes are aluminized mild steel.
Less Restriction and More Flow
Added Agressive Tone (Connecting pipes w/out Cats will be even louder!)
Your Options to Choose From...
Supersprint offers four available fitments for this section of the BMW E46 M3 exhaust system. You can choose to retain your catalytic converters with Supersprint metallic cats and choose the appropriate fitment depending on whether you are using stepped or regular headers, or you can choose to run a cat-less system and simply put in a Supersprint connecting pipe and also choose the appropriate fitment depending on the type of headers you are running.
Note: US Models have the catalysts built into the OEM exhaust manifolds.