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Corsa Catback Exhaust vs stock
I am looking for a way to make my car more efficient and lower boost presser I am at 14 . I am currently running stock manifold and no cats .
I am going to be running kooks headers , off road pips ( catless ) and stock exhaust . My question is ..Dose anyone know if a Corsa Catback exhaust flows better then the stock ? and in retune give even better air flow ?
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