03-14-2016, 04:52 PM
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#8
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Senior Member
Join Date: Apr 2013
Drives: 10 Series #974 6m/t
Location: NYC
Posts: 1,956
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Mentioned: 6 Post(s)
Tagged: 2 Thread(s)
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Quote:
Originally Posted by MisterSheep
I can tell you for most, if not all cat-backs on the market, you will gain 0whp with a catback.
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 i say 1hp lol
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