Supersprint Tubular Stepped Headers + Sport Cats – E46 M3

Product Details

Experience the latest design innovation from Supersprint for the E46 M3 — ‘stepped’ design headers. While the technology has been in widespread use in Formula 1 for awhile, this is the first application of a stepped design on the E46 M3. In an engine that is tuned as much as the S54, airflow management is critical in getting big horsepower numbers from the exhaust. The Supersprint design is the next step in innovation in header design. By slightly increasing the size of the pipe diameters as the exhaust system moves away from the engine, the exhaust can flow more air. Supersprint design is tuned specifically for the S54 engine which is important in making more power without losing low-end torque. The headers merge into a precision-fit merge collector. Total horsepower gain with the complete system over a US Vehicle would be more than 30 hp.

• 15-19 hp gain over ‘Euro-style’ headers
• full stepped tubular and equal length headers
• bolts to the engine with factory hardware and gaskets
• used with Supersprint stepped section 1 (with or without cats)

Included in this kit are Supersprint metallic sport cats designed to pair right up top Supersprint’s own stepped headers. The piping is slightly oversized and the Supersprint sport cats are much freer-flowing than a traditional stock cat. With less restriction, less effort is required to move the exhaust gasses which will free up horsepower and torque. This cat section will only mount to the Supersprint full stepped headers (p/n 044001) and then to any section 2. These cats are built with O2 sensor bungs pre-installed after the cat if you wanted to extend your stock post-cat O2 sensors (however, special software may still be needed).

When deciding on the right exhaust the hardest part is feeling confident in the best sound mixed with increased performance, this really leaves you to guess based on reputation. Fortunately, Supersprint has the reputation covered when it comes to BMW exhausts. For over 60 years their goal has always been designing and building the highest quality exhaust available. This has been achieved through extensive testing using real race teams to get the best feedback there is to offer, from the ones who demand the best every day. Extensive dyno testing, high-quality materials, and race team feedback are what allow Supersprint to extract the power from your engine, not just the noise. Supersprint exhausts offer quality, performance, and a great reputation that no other systems on the market can match!

Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.