Hi, my CEL light came on few weeks back, just got a call from mazda and they say it is because the cat has gone. Would you reccomend changing just the cat (cheapest option) or the cat back?, as there will be bits blowing around in the rest of the exhaust from the old cat, and i am not sure if that will damage anything in anyways?

Cheers

 

if your car is still under warranty, take it to the dealer and have them change the converter.

 

unfortunatly the warranty has ran out it is 2004 model.

 

No NO NO

Warrenty for emmissions are good for 80,ooo miles

 

^yes....80k miles or 8 yrs I believe no maybe it's 6yrs can't remember but either way if ur not to 80k it's covered!

 

Im in the uk, does the warranty still apply??not sure if its same as it is in US, car only has 40k on...
cheers guys

 

US mandates 80,000 on emissions items, in the UK it might be different.

Replacing with a catback will not help because it would not replace the catalytic. OEM cats are expensive, maybe get the RP Supercat? (although, not sure what it would cost to ship to you)

 

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

 

No sorry, i was going to replace either just Cat, or the cat + cat back not sure weather its worth getting the lot done??

 

Rp Super cat is good and has alot of users for feedback.

 

how much is a cat in UK? Can you find any used ones from people that have put midpipe or turbos on?
If you cannot, try getting that RP Supercat, I've had it for a year and it works very well.
If you feel like changing the exhaust note of your car, I recommend a catback. Not much hp difference but the look / sound is worth it to me.

 

the RP cat is good enough.

Save your money. you don't need a new muffler.

 

Cheapest cat i have found is £280 on ebay, and cat back is £260. just a little worried that if i replace just the cat all the loose bits from my old cat will blast and damage the exhaust??

 

if the cat is broken up into pieces, they'll fall out when you take the cat out. No need to replace the catback just for that.

The RP Supercat is $395 US Dollars, how much is that after conversion?

 

it is £277 so cheaper than other one...

 

send them an email to see what it would cost to ship.

 

Sometimes you can find a used RP super cat in the for sale section.

 

yes, but sometimes they're the earlier models that dont have the right mounting points. (plus, the later models had a heat shield put on)

 

I also say supercat!

 

 

LMAO

 

would i have to replace the mid pipe as well??
cheers

 

You would normally replace a cat with a midpipe. Did you install a midpipe on your car? If you did it will throw a CEL for a failed cat and Mazda will want to replace it.

 

The cat IS the mid-pipe. The header connects to the (shin-bone!) cat which has a resonator behind, then joins to the 'cat-back'. An aftermarket midpipe replaces the cat and resonator.

A 'dead' cat is usually stucturally sound, just dead catalytically and no longer working. They don't usually break into chunks.

Does the MoT do emissions testing? Do you 'need' the cat? An empty cat-shell will give a tiny boost to performance, mileage and sound great.....

S

 

mazda told me i need to replace the cat,it is completely stock at the moment. so i was looking at the RP ‘Supercat’ Mid Pipe, would i need to order anything else?? will it pass the MOT for emisions also?