hmmm... these are all dual exhausts, are there any single exhuasts (that can have good gains)?



All of the exhausts i've seen are dual exhausts.



Call me weird, but I dont really like duals.

Personally I prefer duals to singles any day. But there are single systems. I think, correct me if I'm wrong, the A’pexy N1 is a single setup. They've got it over at rx7.com ... Click Me



89 Rag when you say other do you mean the "Complete "Single" Exhaust System"?

here is the borla, which i heard is a real nice system. it's not too pricey either. i have the racing beat complete system for my TII, and i love it. somewhat quiet, but still opens up WOT. if i didn't get it, i'd get the borla, which a number of RX-8 owners have been raving about.



http://www.borla.com/automotive/?cartID=20...6128.194.43.243



some random dude's review of the borla exhaust: http://www.lemmings.com/mark/rx7borla.htm

RX7Aggie: Is the exhaust you have the one at the top, or bottom of the mazdatrix link you gave me ... Click Here



All this talk about exhaust setups has made me pretty confused lol. Thanks a lot.



Take Care

you could bring it down to kingston, and i can install it for you for a case of beer in the mechanical engineering building's parking lot.

=)

A case o' beer sounds like a good deal ... how about 10??? https://www.nopistons.com/forums/pub...1047683329.gif Although, kingston is still a tad far. When it comes to Rx7s living in Montreal sucks lol.



Now that all the ricers have brought out all those "beautiful" loud ass civics https://www.nopistons.com/forums/pub...1047683358.gif ... I think I've decided to go with the Complete Dual Setup and hopefully shatter their damn windshields when I drive right by them lmao.



Although, coasting home in neutral at night doesn't sound very appealing. So, from what I've understood the "Complete "Single" Exhaust System" has a tamer exhaust note.

Here's how Mazdatrix describes the "Dual" and "Single" setups...



Dual:





Single:



So from what I understand the "Dual" actually has two separate exhaust pipes that go all the way to the mufflers, and the "single" joins to one then a pre-silencer then a "Y" pipe then mufflers. Is that correct or am I just going crazy? I've been reading so much I've confused myself lmao https://www.nopistons.com/forums/pub...IR#>/blink.png.



Thanks a lot for your patience lol.

Shaun

This is a two into one. The individual exhaust ports flow into separate header tubes, which are then collected into a single tube. Typically the single tube feeds a main cat or a presilencer, followed by the y-pipe and individual mufflers.

http://www.racingbeat.com/photos/16010.jpg

This is a two into two. The individual exhaust ports flow into separate header tubes, which are never come together. They go into separate presilencers (we hope) and separate mufflers.

http://www.racingbeat.com/photos/16001.jpg

Either way you’ll need to plumb in an O2 sensor bung somewhere.

I think I've made up my mind ...



I want to go with this setup from Racing Beat:



- 1986-92 RX-7 (Non-turbo) Streetable Header/Collector

- Power Pulse Presilencer 1986-88 RX-7 Manual - Non-turbo

- 1986-92 Non-turbo Street Exhaust System



That is what I want but I don't know if going with:



- Catalytic Converter Replacement Pipe with Presilencer

- 1986-92 Non-turbo Street Exhaust System



Would be a little "Tamer" ...



Thanks a lot everyone for all your help, it has really made my research a lot simpler.