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      04-15-2009, 02:58 PM   #75
E90///M3`
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Drives: 2008 E90M3
Join Date: Jan 2009
Location: Daly City -4- Work///Camarillo is Home

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2008 BMW E90 M3  [3.80]
Quote:
Originally Posted by d_dot View Post
so saying i would go with no cats at all which exhaust from the end of the headers all the way back will produce the most hp gains?
AFAIK, i believe RPi has the most gains. +24whp i believe? i could be wrong though.
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:Have: 08 E90M3, Varis VRS Front Lip, LS3, ESS Supercharger, Arqray Exhaust, Neez Wheels
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