http://www.agency-power.com/catalog/...3-p-13101.html

that is the exhaust i am planning on getting for my 2004 velocity red rx8. Now this exhaust replaces the cat right? also when i put this exhaust on, what do i have to do to get it to pass smog in california. Will it?

 

This package does come with a single resonator mid-pipe which replaces your cat.
I would recommend that you keep the cat in the garage because you will need it for e-check.
There are ways to mask the CEL (Cobb AccesPort), but you can't hide the visual inspection for a cat.
So its best to reinstall the cat for e-check, or just keep the cat on.

 

Actually it would be better to buy a system that has a cat.

Your car can be towed away for not having a cat.

What ever you do .... wait until you have done smog, then change the system.

 

yup, in CA not having a cat can lead to having the vehicle towed and possibly even impounding it for up to 30 days.

 

honestly, ive never heard of getting the car impounded or tooken away...both taj and renesis got fix it tickets...

 

usually that's all you get BUT the law does allow them to.

 

uh oh!

turns out i did have a leak on my midpipe, got a gasket and cleared up everything, DAMN, turns out the midpipe isnt AS loud as it used to be, cant even really hear it anymore, but does give a nice POP at redline shifts

 

Not having cats, can, like Jedi54 said, lead to huge punishments from the law, including a financial fine of $2000 per cat in CA. On my car, thats $6000, and theres no way I'm taking those things off.

Plus, doesn't taking the cats off an RX-8 produce only moderate horsepower gains, while at the same time throwing out much greater amounts of pollution?