The cats are getting cut off my car and replaced by straight pipes. Noticable difference in perf. and sound?

 

you wont notice much in performance unless they were clogged or getting that way.. then it may be a big difference, but there will be quite a bit different sound.. and you will probably notice a different smell from the exhaust with more fuel making it out.

 

sound will be very different...performance not so much...

 

So not only will it be louder but it will havea different tone? I have an o/r h-pipe and flowmaster american thunders on the car

 

Then you shouldnt have to cut off the cats.. Cats are not on off road pipes.

 

I meant to put catted h-pipe. I was just reading threads about o/r h-pipes and it was stuck in my mind hah sorry[&:]

 

I noticed a diff in performance, because my cats had 115k miles on them. But the sound is unmatchable. I dont understand... you have a catted h and want to switch to o/r, right?


http://videos.streetfire.net/video/7...7400d47191.htm

 

I would sell your catted H pipe(if it isn't stock it is worth something) and buy and off road H instead of cutting one apart.

 

Oh hell yeah. I hear for the most part that the aftermarket catted h's dont even pass smog anyway. I have the stock pipe in the garage and run with the o/r

 

+1 you should have money left over after doing that too.