Milltek Weld-In High-Flow Sports Catalyst- 100CPSI- 76.2mm Cone 982 718 Cayman 135i boost pipe UK

135i boost pipe UK

Vague steering and inconsistent rear-end behaviour

For vehicles without GPF OPF only

We have fitted these on customer cars at MJ Modifications and the feedback is consistently positive

drivability and overall build quality

Milltek Weld-In High-Flow Sports Catalyst- 100CPSI- 76.2mm Cone 982 718 Cayman 135i boost pipe UKYour original catalytic converter will typically have 400 or 600 Cells per square inch (CPSI) these original cats are restrictive in their flow typically allowing an open area of around 55 65% Milltek Sport Hi Flow Sports Cat which will be fully integrated into a large bore downpipe has only 100 200 CPSI depending on application These cats have an open area of between 75 85% thus reducing back pressure substantially and increasing flow rates all very