[roadrunner93]

I have stock cat back on my car now. I know it would sound better, but would a 2 1/2 inch catback (Flowmaster) make a big difference in performance?

Thanks

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93 LX
1"5/8 shorties, 2 1/2 " off road H Pipe, K&N Air w/silencer removed, Taylor wires, 3.73 gears, Hurst Shifter, BBK Power Pulleys, 14 degree timing