muffler 1st gen RX7

[#8rx7]

My ITA has a custom header/exhaust it came with when I bought it. It is not a problem where I have been racing to date but am sure it will be to loud at some tracks.
Any ideas on mufflers that will work without to much penalty.

 

[joeracerx95]

This is the one I use. It needs flanges welded onto it before you can use it.

http://www.mazdatrix.com/getprice.asp?partnum=16030
http://www.racingbeat.com/RX7-1975-1985/Exhaust-Components/16030.html

 

[Dano77]

Lo-Bak Mufflers,Moroso Spiral Core Mufflers,both the same. Running them for years,quiets down a rotary alot and dosent seam to kill the power.

Available thru Capital Motorsports Warehouse or Summit and Jegs Speedway,etc


Dan
77 IT7

 

[waynehussey]

We use ultraflo muffler. We put a tip on the end to point the sound down to the ground and have not had any issues.

 

[frazer]

Had to bring this post back up... Just bought a 1st Gen IT7 car. It currently has a RB header, going to two pipes merging to the muffler. I had an UltraFlo on my '90 ITS RX-7 but don't know the model number. I'd like to pick another one up. Can anyone tell me what the right size or model # is for my car.

On the ITS car, we had a 90* adjustable elbow on the end to direct the sound. Never an issue there either.

 

[frazer]

after some more digging, i found what i was looking for. the model # is 17296, in case anyone is wondering.

 

[nswanberg]

The 30 dollar muffler at Auto Zone works great. Sounds loud on the paddock but quiets right down to a buzz at speed. I know I did not believe it either.