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      12-01-2011, 12:04 PM   #15
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Drives: 08 E90 M3, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: Concord, NH

Posts: 1,620
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You could get 375 rwhp for $3500 from a high flow cat midpipe, tune, filter and pulley, retaining the stock exhaust. Or you could get 350 rwhp for $3500 from a slip on rear exhaust. I think Akra quotes about 3 rwhp for its slip on rear exhaust. BMW quotes "a more powerful sound."

Do you want to sound good, look good, or go faster?
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