Supersprint Turbo Downpipe With De-Cat - BMW 1 Series F20/F21 M140I | 2 Series F22/F23 M240I | 3 Series F30/F31 340I Evolve Downpipe 550 rpm when tested on

550 rpm when tested on the Akrapovič dyno against a BMW X5M with a stock M Sport exhaust system for comparison

laser-cut TPi logo and specifications for easy identifications and a special backlash groove design for a perfect fit

Unlike the stock muffler

including stunning carbon fiber tailpipes

Supersprint Turbo Downpipe With De-Cat - BMW 1 Series F20/F21 M140I | 2 Series F22/F23 M240I | 3 Series F30/F31 340I Evolve Downpipe 550 rpm when tested onNOT ROAD LEGAL As an alternative to the "road" catted version (987311) Supersprint also offers a de cat option, for track use. This component drastically reduces the back pressure after the turbocharger, with beneficial effects on the temperatures and the gas flow. The absence of the catalytic converter requires the modification of the electronic management to avoid warning lights on the dashboard (CEL). All the characteristics of the 987311 (easy