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Does Anyone know the added HP for Shortys, Catback & Air Intake upgrades???
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03-18-2009, 08:10 AM
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SS 376
Drives: 2010 IBM 1SS (Former)
Join Date: Feb 2009
Location: NoVA
Posts: 2,032
We have to wait until we get the car on the dyno. I will say that you'll want long tubes over short tubes even if they're not GMPP.
SS 376
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