I just spoke to the Mazda Service Advisor at my Local Mazda Dealer. Wray Mazda Columbia SC.

Asked him about a clogged cat and if i could just remove it... His response.... and I Quote. "the car wont run.. No back pressure.. your wasting your time and need to replace the car with OEM"

Is this True? I see alot of people on here either remove or clean them out?

Thanks All

Jeff

 

Yes, it will run without.
Yes, it is good to have a little backpressure.
If you are out of the emmissions warrenty, it is cheaper to get a aftermarket high flow cat, made for a rotary engine, than to buy a OEM. Bad cats are usually burnt out or melted. Not much to clean out.

 

Yes Out of Warranty 84k....Can i get this?

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT

Its a Exhaust Cat Delete Pipe?

Another thing he did say was Not to buy after market CAT wont work either..... Am i crazy or does this guy not know what he is talking about at all?

Thanks again I know some of this is noobish

Jeff

 

Can you? That's up to you. It may get loud, but I don't think you need that to test for the warm start issue first. I live in a location that has regular emissions checks. I can't. The dealers tech will almost always recommend OEM parts. That's all they know. He may not have even owned a Mazda.

 

a. where do you live?

2. the dealership guy doesnt know what he's talking about or he is lying to you when he says only OEM will work.

eleventeen; no back pressure is necessary. the car will run with no back pressure. on a rotary you want the free flowing-ist exhaust you can have

 

Columbia SC....No emmissions.

 

+1 to what's already been said here.
you do not need an OEM cat, the question now is do you want to run catless or with a midpipe
catless usually = louder depending on whether it's resonated
high flow cat = no constant exhaust smell

 

drop the cat and run a broom handle through it untill you have knocked the catalyst completely out.you now basically have a mid pipe if its clean through. if you decide its too loud at some point then get an aftermarket hi-flow/hi-temp cat.

 

Thank you Guys your always a big help...

Any Suggestions for a high flow cat...NON OEM LOL for the 8?

Jeff

 

http://rx7.com/store/rx8/rx8exhaust.html

 

RP Supercat is a popular choice

beat by Jedi

 

Just go from the headers.... Hehehe...