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      06-26-2012, 10:31 AM   #29
Pheonix
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Drives: 2007 Z4 M Coupe 2012 e93 M3
Join Date: Sep 2008
Location: Bay Area, CA

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2007 BMW/Z4MC  [0.00]
Quote:
Originally Posted by thekurgan View Post
That is quite a few tight exhaust valves, valve stretch or seat recession I guess.
Very interesting! Maybe he adjusted the intakes' to the lower end and the exhausts' to the higher end?
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