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View Full Version : Any Adv To Twin Exhausts?



Hambo45
4th November 2005, 18:48
Just wondering if any1 out there would know much bout twin exhasuts (cars mostly).

I want to replace my exhaust on an rx-7 (series 8) and instead of going for the masssive three inch monster, creating a Fck load of noise and attention (mostly unwanted), is there any advantage to running a twin exhaust system?

Would splitting a large pipe into two smaller ones close to the engine be the way to go? And would these changes modify the torque and power curves/levels?

Any help would be greately appreciated

N4CR
4th November 2005, 18:52
There are a few people on this site with rx7's so help should be on its way.

I'd say that it won't really make a difference, but at least you can keep good flow with twin thick pipes while making it quieter than just one big pipe with one silencer/zorst.

DEATH_INC.
4th November 2005, 18:54
Usually better power to be had with a single,but if yer not after every hp then a twin will work.Run 2 the proper tuned length and size,then into 1 for a few inches then back into 2 for the rest.

Hambo45
4th November 2005, 19:10
Cheerz 4 the help, may i enquire as to why the joining of the two and then splitting? I would never have thought of it

ducatilover
4th November 2005, 19:44
i would suggest joining then splitting, this would help with backpressure and perhaps act more like a 2into1 than a typical straight through zorst. gotta love s8 rx-7's best looking jappa if you ask me.....but what do i know i ride a honda :mellow:

Motu
4th November 2005, 19:56
You want a single stack straight up out of the bonnet with a flap on top to stop the water getting in - they rattle a bit at idle,but are the best exhaust you could ever put on a rotary....

marty
4th November 2005, 20:17
run it thru a thrombimulator - they give the best pishing for your $$