harvey up-pipe ported headers , map tweek ?
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harvey up-pipe ported headers , map tweek ?
hi guys ive just fitted a harvey up-pipe and ported and wrapped my headers on a 2005 sti , it seems to run ok but will it need a map tweek ? its decated ,uprated fuel pump,k&n short induction,on a standard turbo mapped by andrew carr . was running 338 at scoobyclinic last year with nur spec fitted but ive changed that to a hks silent power . thanx in advance
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I would recommend a tweak mate will get the most out of the changes you have made but most of all with give you piece of mind knowing that all is well and safe. I have ported headers and Harvey uppipe the difference is very noticeable.
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