Supersprint are often called upon to provide closed-door dyno testing for the worlds top Private & Factory teams and you can't get a better endorsement of a product than on the track
The E36 M3 Supersprint back box is made from 100% thin wall Stainless Steel with twin 70mm pipes and saves valuable Kgs. It is more free-flowing thus reducing back pressure and increasing BHP and Torque.
Available for the 3.0 and 3.2 M3
