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Originally posted by hybrid3do0rcx
theres nothing illegal about a high flow cat. SCC didnt do anything illegal.
straight pipe = losing backpressure. if you dont have a lot of power thats not a good thing at all.
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Ok...back-pressure = bad. You don't want backpressure. What you do want is higher exhaust velocities [sp?] Gutting a cat may give better flow, but could actually slow down the exhaust, thus doing nothing for your car.
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did they actually DYNO the car to see the difference? the butt dyno doesnt tell all cuz sometimes you just "think" it does something.
my friend with a 00 eclipse GT ran consistent 15.3's.....after gutting his cat his car smelled weird and he still ran 15.3's...
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Hahahaha, the butt dyno =) Very very true though....more often than not, people will change something, claim it feels faster, when it actually does nothing. Face it people...you can't FEEL 5 hp.