NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   -   Help On Custom Exaust (https://www.nopistons.com/2nd-generation-specific-17/help-custom-exaust-39054/)

drunkin_idiot 05-17-2004 08:06 PM

OK so I was planning on going with a custom exaust and didnt know where to start with the system. Please put in any input you can on what I should do, like what mufflers, what size piping, that kinda ****, thanks. https://www.nopistons.com/forums/pub...IR#>/smile.png

roadkill669 05-17-2004 09:07 PM

Well, since you have a T2, a DP is a good start. With a turbocharged car, bigger is better. On the stock turbo, 3 inches seems to be enough. The Y pipe should be a 3 inch inlet to 2 2.5 inch outlets. Then the mufflers shoulld be a 2.5 inch inlet (duh) and whatever size tip you want. As far as mufflers, I have foulnd that the EBay N1 style mufflers sound great, dont look ridiculous, and are cheaper than anything else out there. You can also do a single exit, but make the muffler a 3 inch inlet, but why do that on a car that is meant for dual.



Cats are a different story. Only put one on for inspection or smog testing. Or if you dont have that crap, leave it off.



Also, the larger diameter piping you choose will affect the sound. It will give it more of a hollow tone that I think sounds better on a rotary. You can really hear the pulses of the engine.



Ive got a new setup now that is a 4 inch pipe to a 4 inch in and 2 4 inch outs to 2 4 inch in and out mufflers that shoot straight out of the back. I cant wait to finish it up and hear it with my new turbo https://www.nopistons.com/forums/pub...#>/biggrin.png

drunkin_idiot 05-18-2004 01:50 AM

Cool thanks, any other sugestions anyone? If not ima go with roadkills sugestion mabe this weekend,ill post pics, but plz some more input.

1988RedT2 05-18-2004 08:15 AM

Sounds like good advice. I went single with mine for weight savings and because one muffler costs less than two, but my car is primarily a race car. There's no doubt the duals will look better.

drunkin_idiot 05-18-2004 01:08 PM

If I was to buy a muffler off ebay which in ur guys opnion would look and sound the best, I.E. N1, fireball, any different styles.


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