Main cat is FAR different than doing the pre cats which does make a few HP for cheap. Leave the main cat alone or replace it with a straight pipe. DO NOT gut it and leave it be. The expansion chamber (left by gutting it) that far down in the exhaust stream will hurt performance.

Brad Noon
'99 SE MTX
3 point oh my God H.O. 179HP/178TQ
BNMotorsports Floormats, powder coating, TB optimizing, Gutted cats, etc
BNMotorsports is now the preferred distributor of Contour/SVT/Mystique Indiglo style gauges!!!
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