so.......

wheres ur point, i run a carsound cat, people run testpipes for their own reasons. just remember that a cat has a honeycomb filter and a testpipe is just a straight pipe. yes a good cat will flow probably as good as a testpipe but it will be still restrictive. the more mods you do the more restrictive the cat will hurt you. its just like trying to run a small 2.25inch collector/downpipe and bpipe when trying to run big cams or turbo.

so what? i made 16whp on my kamikaze 4-1 with testpipe on my JRSC ITR. but now since im doing all motor im running a modded smsp carsound cat.


pollution is part of life, like i said most cars at the track run open exhaust and straight pipes. do u think they are worried about pollution?? i would like for you to ask some of the NHRA mechanics to run a cat and see what they will tell you.


i could care less if u run a testpipe or a cat, ive ran both.