Quote:
Originally Posted by Vic55
I ran oem headers... the gains, for me, were not material enough. I dont go full bore. Im usually just an exhaust and tune guy.
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Yes. This is also the information I have regarding the Porsche 911 Turbo platform. Bolts on have a very minor affect - it's mostly the tune that produces the gains. This isn't unusual of course - but there are some platforms - like the C7 Z06 for example - where the intake has a pretty big affect (~40 whp) due to the massive restriction on the car.
From my research and those of my friends who own them - and the Shop I speak with - Porsches don't pick up too much from exhaust/headers without the tune (and most tune with it anyway).