Waitey ClioSport Club Member Car M3 Touring, AC Cobra Aug 2, 2008 #1 Any engine guru's know if i'll see any decent gains from this. My new Garrett GT2556's exhaust inlet is only about 75% of the size of the gasket so i was thinking of getting it ported to the size of the gasket.
Any engine guru's know if i'll see any decent gains from this. My new Garrett GT2556's exhaust inlet is only about 75% of the size of the gasket so i was thinking of getting it ported to the size of the gasket.