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      04-30-2011, 09:13 AM   #98
Singletrack
4th down; 4th quarter? Renegade.
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Drives: 09 SSII E92 M3; 12 AW X5d
Join Date: Aug 2008
Location: Pittsburgh, PA

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Quote:
Originally Posted by dexx View Post
LOL "no mods.."

never change the exhaust on a modern car with computer controlled ignition without adjusting the timing. Of course _you_ can't adjust the timing! Now the engine is running ignition advance that's way too high for the new exhaust. I bet if you tear down that engine there will be pits all over the pistons and heads from the detonation.
You are a FOOL if you think this engine management, and many others, can't adjust fuel and timing for a simple exhaust mod - catback and 2nd cat delete.