Thread: How much psi
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Old 08-09-2009, 07:59 PM   #3
spoony_prelude's Avatar
Join Date: Aug 2003
Location: Toronto
Posts: 1,892
ive heard anything over 6psi, and your asking for trouble. yes tuning makes a huge difference but even then your reducing te engines reliability by quite a bit.

And before some guys on here with charged s52's come blasting about how theyve had their blown for years. Yes it also depends on how you drive it, if your a conservative driver that likes to play around once in a while, your ok. But if you are constantly beating on it, youll do some damage. Id recommend at least getting a commetic head gasket and arp head studs!

just my 2cents

2011 M3 coupe/moonstone/fox red
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