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-   -   what inch outlet do i need? (https://www.rx8club.com/series-i-aftermarket-performance-modifications-23/what-inch-outlet-do-i-need-208127/)

J_Ro 11-20-2010 02:42 PM

what inch outlet do i need?
 
Okay, so I bought a body kit and I'm starting to put it on but after paint, kit, and other daily costs, I'm a boot low on $$$. But I still need a exhaust system. :(

I love the deep sound of borla's exhaust but I don't have 1000 dollars lying around.

I'm planning on making my own custom exhaust but what inch muffler do I need to get close to the same sound of brola?

Thanks for tha help

J_Ro 11-20-2010 02:44 PM

I'm planning on keeping dual exhaust btw.

DarkBrew 11-20-2010 02:59 PM

You can remove the mid pipe with the cat converter and replace it with a resonator pipe. This will increase the sound output and may give a bit more power.

Weld some 3.5" or 4" tips on your stock muffler.

Brettus 11-20-2010 03:27 PM

/\ even cheaper : just gut the cat

DarkBrew 11-20-2010 03:53 PM

^ I always think in terms of preserving the cat for emissions testing; I guess it depends on the local laws

Brettus 11-20-2010 03:55 PM

oh oh - the cat king is watching this thread !

run for the hills !

TeamRX8 11-20-2010 03:58 PM


Originally Posted by Brettus (Post 3791463)
/\ even dumber : just gut the cat

Yeah....

Brettus 11-20-2010 04:00 PM

/\ The suggestion was to spend $ on a midpipe that wouldn't have a cat anyway ........ ;)

TeamRX8 11-20-2010 04:12 PM

You still fail

Brettus 11-20-2010 04:25 PM

:tear:

TeamRX8 11-20-2010 06:20 PM

Please don't tell him it's cheaper to pour used oil down the street drain either ...

Brettus 11-20-2010 07:42 PM


Originally Posted by TeamRX8 (Post 3791556)
Please don't tell him it's cheaper to pour used oil down the street drain either ...

By suggesting that you just unwittingly killed several thousand fish .

DarkBrew 11-20-2010 09:01 PM

You guys make baby Jesus cry :lol:

J_Ro 11-20-2010 11:33 PM

so get a resonater and weld some 4" on the exhaust? alright

DarkBrew 11-21-2010 07:44 AM

Nothing on the RX-8 exhaust is cheap. If it is then it won't last. Think about a used one.
Place a WTB ad on this site for a Cat back system and a mid pipe. A good cat back should be $350 used and a mid pipe should be under $200.

J_Ro 11-23-2010 12:59 AM

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fuztupnz 11-23-2010 06:12 AM


Originally Posted by J_Ro (Post 3793538)
Is it all good if I just weld some carbon fiber wrapped mufflers with 2.5" inlet on it? Id figure it would be but for some reason ebay says that won't fit a RX8...

Be wary of cheap mufflers. The packing will just melt. Even flowmaster says not to use their mufflers in a rotary application.

If you're going for the two muffler/two tip look, you can "y" the exhaust off into two 2.5" mufflers and be fine. The stock exhaust is 2.5" to start with. If you're on a small budget, a diy exhaust will break it if you use high quality mufflers and pipe. As said before, check for used name brand systems.

the1jesster 11-23-2010 08:42 AM

[quote=fuztupnz;3793 Even flowmaster says not to use their mufflers in a rotary application.

Even though I did and it has been a great muffler for 12 months now the 44 can handle the heat just fine it was built for big blocks to run the 1/4 thats a lot of heat


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