cut-out or cat-back
you will go slower by putting a catback on than running through your current cutout. you will lose both hp and tq. despite what some others may say, you don't LOSE tq at all by putting on the cutout, the tq shifts to the higher rpms. I gained a SOLID .15sec and 1.5 mph in the 1/4 mile. I have NEVER even ALMOST run as fast with my flowmaster as I have with my cutout open. it's just not a fair comparison.
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jasonduaine
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Apr 1, 2015 08:09 PM
6speedZ28
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Jul 27, 2002 03:17 PM



