83 RX7

Can I remove cat and replace with straight pipe or something ????

Is this good ..bad or other???

Thanks

 

good thing take it off..

 

Do ya gotta pass emissions? If not, ditch it.

 

No don't have to pass anything around here was worried about performance ...is the blocking off of anything else needed or a problem???

 

Illinois don't have no emissions? Shucks. I was about to go to Urbana Champaign for college, but didn't get into their engineering program (top tier). I would've LOVED to zoom around in a smog-exempt rotary...

Happy polluting! I mean rotoring of course.

 

Option #1) http://www.rx7.com/cgi-local/1catalog.cgi?cat=4&part=2
Cheaper, but don't gain as much since the stock manifold is retained.

Option #2) http://www.mazdatrix.com/r-8.htm
Header and Pre-sliencer is the way to go IMO.

 

Thank you ..

And in the South ...... sort of out of the way

 

Yeah go straight pipe
unless you are worried about noise you might want a presilencer rb has great ones!

 

I'd go with the full racing beat exhaust if you have the money. I have it on my 1983 GSL and it is awesome. It removes the cat, puts a presilencer in. Removing the cat will give you some horsepower, especially since it's probably a little clogged on a 20 year old car.

 

With the stock exh manny and stuff, a straight pipe wont be that loud. www.testpipe.com like $30. But I'd suggest you gut the precats if they are not already hollow.

 

Or you could stick a pipe through your cat and weld it in thats what i did so if a cop pulls you over and takes a look its still there but actually its a straight piped exhaust!!!

 

Ahhhhhhhhhhhh veddy veddy slick!