19hp gain over factory BMW Euro system; stepped tubular
headers/downpipe with S-pipe (no cats); bolts to the engine with factory
hardware; clamps/slip-fit to Supersprint X-pipe or aftermarket equivalent
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's 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 and then exhaust gases
flow into the oversized S-pipe. Our most-popular package is for the stepped
headers with no cats (straight pipe) but cats are available for people who want
to keep their cars somewhat streetable. Total horsepower gain with the complete
system over a US M3 would be more than 30hp.
We also recommend using this system on the M3 with special software.
The Shark Injector software has been specifically designed for cars running
headers but no cats. The software "turns down" the readings from the
rear O2 sensors and modifies the tolerances for the EGT sensor. Using an exhaust
without the cats and proper software will surely cause a Check Engine Light. Click
here for more info on the software.
This part alters or deletes the emissions equipment on your car. Because of this, we require a waiver of emissions compliance to be signed and sent in to TMS.
You can download the waiver here.
Applications:
2001-2006 E46 M3 including M3 ZCP, M3 CSL coupe and convertible
2006-2008 Z4 M Roadster & Coupe
