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06-29-2016, 11:59 PM
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#15 |
 
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Does elimination of Cats result in a HP gain and if so, how much approx.?
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Cowboy Troy
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07-01-2016, 11:18 PM
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#16 |
 
Drives: 94 impala ss 396 6spd Join Date: Dec 2011
Location: melbourne fl
Posts: 84
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Hey now,
Newbie question If I hollowed out the cats on my zl1 would I need a tune? Thanks
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dave
13 ZL1 12w7 plus a few other things  |
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