QTP Dual Cut-out Y-pipe
but anyway, cutouts are worth anywhere from 5-12rwhp depending on how restrictive your catback is.

The cut-outs are great for the track

-Todd
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This was all setup for the floor pan of a '99 SS. I took it off and put it on my '00 Z28 and it is freaking low. By myself it will drag if im not paying attention. If one or two more people are in the car it will drag almost everywhere, NOT COOL. I never had any problems with ground clearance when it was on the SS though, its weird. I thought the floors were universal but i guess not???

AND if you run dual cutouts in this location you will run into problems with tuning. I had mine tuned for the street (closed) and when the cutouts are open the car runs lean, like "holy **** i dont need to be driving it this lean". Tuned for open it runs really rich while driving with them closed on the street.
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