To Cat or Not to Cat??

I ran the BBK off-road H pipe and loved the sound but lost bottom end power and didn't really feel like it gave me anything in power actually. The Bassani X worked really well for my car but since the 99 GT's are pretty stoudt in the bottom end already you may get away with an off-road X pipe. To be safe though, you can't go wrong with the cats. Lance

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(96Cobra/softtop-3.73,almdrvsht,fancontrl,steeda sbfrmes+shifter,eibachspgs,pulleys,Bassani X pipe,C&L 80mm
Cobra DYNO 301rwhp horsepower
93 Ford Probe Gt(slower but turns)