Milltek Seat Leon Cupra (14-17) & VW Golf MK7 GTI (13-17) Cast Downpipe with Race Cat Jss Automotive Works brilliantly alongside quick shifter

Milltek Seat Leon Cupra (14-17) & VW Golf MK7 GTI (13-17) Cast Downpipe with Race Cat Jss Automotive Works brilliantly alongside quick shifterYour 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

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