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using a cat makes you faster?

Posted: Thu Aug 27, 2009 12:42 am
by DjSpecter
Well I finaly put a cat on my cat after it was hacked off by a stuid decision nad I can SURLEY say i felt a major diffrence then running stright pipe. I feel alot of acceleration come back and i feel like I actully got just a little bit MPG. Why is that? I mean I thought stright pipes were good? Im mean I stuck with small but good diameter piping 2.25 inch. And ALOT of theraspy noise went away and its just a settle low tone.

Posted: Thu Aug 27, 2009 7:07 am
by mooreofit
backpressure in your exhaust helps with low end torque. but it will hinder high end horsepower.