DamonB

In a word, no. That's ridiculous. Whomever is giving you such advice is missing something....like a portion of grey matter

adam c

iTrader: (2)

If you drive at 75 mph for 1.5 hours, in 3rd gear, you will remove all the build-up in your gas tank.

MaxRX7

double post

MaxRX7

you'll be deaf.
exhaust droning sucks @!

SanJoRX7

You can't be implying that they're using anything different than anyone else is, are you? If so, you're most certainly wrong. Mazda doesn't have any kind of special pixie dust in there, it's just the standard cat guts (which is platinum, rhodium or palladium...accessible to everyone in the auto industry and at your local Safeway/Von's/Kroger).

turbojeff

iTrader: (30)

I think running any type of cat on any FD hard frequently on the track will eventually make the cat fall apart.

I replaced my 65K mile main cat 10/03 with a stocker in good condition with more miles. Mine LOOKED perfect on the outside, inside the bricks had broken.

RX7WEEE

iTrader: (16)

a guy who has a 3rd gen told me that thats what caused his engine to blow up befor 30K he babied it to death. he said that the mazda dealership told him every so often that he should do that... so ill just have to get a down pipe and a mide pipe with and a better (powerFC)ecu

fdeeznutz

I use my stock cat for about 15 minutes each year I go to and from emissions check point. $2000 for the stock cat? I would just get a MP, PowerFC, and with the left over money a Veilside body kit

SleepR1

DamonB. Clogged Bonez high-flow cat was the root cause for my latest low boost problem. Symptoms and failure occurred to me exactly as you described with your 110,000-mile stock cat--during a track event (I got 4 laps). My Bonez was 5 years old and had 74,000 miles on it. Symptoms were secondary turbo was not making boost. Eventually the clog got so bad, that the primary turbo boost decreased, and the pattern was 4-0-4.

https://www.rx7club.com/showthread.p...13#post2288713