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BostonR56S · 11-11-2011, 10:32 AM

To gut, and keep my stock one incase I need it for emissions.

The stock piping diameter is not nearly as restirctive as the 400cell cat. and gutting it would more than free up that bottleneck. Plus, all the aftermarket catless are still like $400+ which is pretty ridiculous for a piece of pipe and flanges. The OBX is a good option, but since I still have my stock flex pipe and V-band connection anyways, I'd rather not be doing all the cutting and welding to get the OBX to fit with my magnaflow piping now. The RR is a good option, but blake likes to screw me over (JK, not his fault lol), and they haven't been seen on ebay in a long while.