DustoneGT

I was wondering if flowmaster 40 series mufflers
can handle the heat.
The thing I like about these mufflers is that they
are built like a tank....heavy duty suckers...thick
steel.
I also like the way they filter out the nasty higher
pitched sounds and let that deeper rumble out.

Getting them installed is not a problem for me,
I just heard that the higher EGT can burn up
normal mufflers. I would remove the cats and
any other stupid restrictive stuff in the system.

Has anybody done this?

SDrotary-FC

I had one on my 1979 rx7 w/ headers way back in the day ( 1991) and it is still around to this day on someone else's rx7, never had a problem with them.

Froggmann

Hey how did they sound? I'm thinking of the same thing on my 89 since I can have the work done rather in expensively by a shop I know and trust.

While we're on the subject of EGT and "other than Mazda" parts, Is it possible to convert from the 3 cats in my N/A to just one good aftermarket cat?

anobii

The sound of a flowmaster changes depending where it's installed. I've had several on different (V8-V6-I4) cars. Closer to the header makes a mid range sound (both high's and lows) and on the very end of the system it's really deep and loud. Thats just my experiance with them. I think they'd make a really good pre-silencer if anything.

E