True duals vs. Y-pipe
#1
I have Pacestter long tubes and posted a thread earlier on mufflers and someone asked if I was using a ORY. I was just wondering what would produce more HP, true dual exhaust, or the ORY?
#5
definatly get a tune when your done with the exhaust either way!
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2002_Z28_Six_Speed
GM Drivetrain & Suspension
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Oct 4, 2015 01:34 PM




