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Old 03-01-2004, 07:26 PM   #3
crusher
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Join Date: Oct 2002
Location: The boonies
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i have k&n and been using it till january on the coupe. it sounds a little different than the stock, performance? i dunno maybe a little bit.

I had ECIS CAI before on my e36 m3 and it sounds a little bit wilder than the stock/k&n filter. FOr the power gains, ECIS is one of the best out there. Or ECIS + Jim's filter = good gains too.
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