BMW E91 Touring 328i / 328xi (USA version N52N) 2004 -> 2008

100% Stainless steel Oversize 2 x Ø54mm –› 1 x Ø70mm system.

The high performance catless headers, long tube and equal length, replace the OEM pre-catalytic converters, with power and torque increase.
An ECU tune or O2 sensor cheaters are necessary to avoid the Check Engine Light.

The rest of the system must be fitted as a kit because of the shape of the OEM piping and the presence of the reinforcement braces under the car frame.
The front pipes with high flow metallic cats are recommend for road use coupled with the catless headers.

Systems for replacement of kat for OBD II car models (with lambda sensors before and after the kat.)

These systems can only be used for racing purpose exclusively, in conjunction with the modifications of the engine management system. If used with a stock “ECU”, malfunctions may occur. All modifications must be carried out by qualified personnel only, under the liability of the car owner and at his expense.

Supersprint guarantee is limited to the quality, workmanship and correctly fitting to the intended car model for all race products.