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Re: Dyno and 1/4 mile gains after cut outs?
I just unbolted the cat back and took the pipes out of the way. Same as cut outs. I took the car for a drive. Seat of the pants it feels the same or slower. Small loss of low end and no top end gain. Cut outs on my set up seem to be a waste of time and money.
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'03 Automatic. No silencer, K&N FIPK, 3450# race weight, drag radials, cat back, custom tune, alum. driveshaft, intake spacer, raised scoop, underdrive pulleys, larger subframe connectors, synthetic engine oil, removed front sway bar, battery to trunk, 2.06 60', 12.99 @ 107.4 
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