stay dual.. i have the n1 dual's. and i love seeing those 2 cannons coming out the back.. single is borrrrrrriiiinnnnggggggggggg.....

 

I've got a 3" turboback exhaust w/ hi-flow cat exiting the driver's side. It's straight back with hardly any bending, it backfires and is loud as hell. I LOVE it!

 

Amen!

Everyone has there own opinion, but for me its duals or go home.

 

...im good with my single corksport turbo back..but id be in heaven if i had a dual corksport setup, it just looks so awesome with a rear diffuser.

 

Maybe it is, but has your exhaust sacrificed performance to get that noise level?

That tells me nothing. Magnoflow is a brand, not a type of muffler. I'm sure they make quiet, restrictive mufflers as well as free-flowing, not-so-quiet ones. And an your 18" muffler could be anything. Could be for 1.5" pipe; that'd be quiet...

Bollocks. You describe a single-muffler exhaust system and I'll describe a dual-muffler system that will outflow it. Pipe size is far more important as a determinant of flow, and it's easy to select two parallel pipes and mufflers that'll flow better than one. I bet you think the Y is a huge restriction...

And I bet under the same conditions his would flow a lot more than yours too. Exhaust design is always a compromise between flow, noise and cost.

 

[sarcasm]Don't forget weight of second muffler![/sarcasm]

 

you want to eliminate dual exhaust and need my opinion: don't.

/thread

 

Not at all. Not with the current turbo. I added the second muffler for boost control. I was hitting 16+ psi with my mod'd stock s5 turbo. Now it gets up to 8 (10 with meth).
When i go big turbo, I'll get 3.5" tubing, but same muffler set up. I'll try to get the details on the mufflers themselves, but it really is a pretty quiet set up.

I beleive the 'Y' creates a bit of a problem. Nothing terrible, but no matter what, one of the tips won't flow as much the other. So in some cases, this would create back pressure.

 

If you are looking for opinions, mine is that single looks stupid and broken. The factory (or aftermarket) duals balance out the car and offer a good compromise between flow and noise. In fact a good dual system (like the RB system) is downright quiet.

If you want to convert to single, do it properly and mod the other side of the bumper to to eliminate the cutout in the bottom for the nonexistent muffler. With the cutout still there it looks like one muffler rusted and fell off, and with the loudness of many single systems it sounds like it too! Traditionally, Mazda rotary cars with single exhaust have exited it on the passenger side, so in the off chance that I would ever go to a single exhaust that's where I would place mine.

 

i guess bling is winning this thread...
I really could care less about the way my car looks at this point. (exterior)
I haven't bought ONE single thing to imporove the way my body looks. Eventually I will, but I am far from that right now.

 

It's probably safe to assume that most people care how their car looks.

 

I think I have some more somewhere, can't find em at the moment

 

^^

 

Singles and duals should have a war! Let's all meet in a field somewhere and shoot at eachother and then we'll see which exhaust is better! What, don't like my idea? It's worked pretty well in the past....

 

OMG your like so JDM >.<

 

LOL!!!

wanna race?

 

I changed my OEM to a bonez cat and the N1 cat back system and loved the performance I got out of it. Yea I like the look of the duals but heck for an extra $300 or so ... i could do other mods for more power.

Oh yea that was in my old car that got totaled.

 

For some reason I thought your car was NA... You've just contradicted yourself though. You say your exhaust doesn't compromise performance, but then basically say you made it restrictive to lower boost. How is that not compromising performance? If you had better wastegate flow, you'd be able to use a less restrictive exhaust and make more power at the same boost thanks to more efficient breathing.

The only way there would be a significant imbalance is if someone made a complete hash of what is supposed to be a symmetrical system. On a decent dual system the tiny flow imbalance you'd probably see if you bothered to measure it would not cause a restriction itself. Even if it did, the reduction in restriction from using two properly sized pipes after the Y will be considerably more than the restriction caused by the Y.

Chrome wheels are bling. Using the same exhaust configuration as stock is not.

 

So many ricers, keep it dual people.

 

I have an RB dual system and it looks nice and is quiet, but it's quite heavy. I'll likely be switching to a 2.5" single system this summer in an effort to get the cars weight down (it was at 2850lbs when I weighed it last summer). Sure it might be a small percentage, but if you do a bunch of small percentage decreases it all adds up, every pound counts. I'm also looking to get a little less restriction, and I don't mind if it gets a little louder, as it'll be retired from daily driver status that summer anyway.

I don't think it looks bad per se, even with the other cutout, but I suspect that for me anyway, having a black car will be good as it'll be less visible.

Basically it's a personal preference, so there's no point in arguing about it, each has its benefits and disadvantages, it just depends what ranks higher in your personal oppinion.

 

i like mine single out the driver side. the apexi n1 is what i plant to get since im going turbo

 

Yes.

 

you're on Aaron!!

NZConvertible, i needed a boost controller of some kind, and since i am running a mod'd stock s5 turbo for now, the most economical way was to add a muffler. 16psi isnt exactly safe on a stock turbo, No matter what ECU you have.

So yes it restricted flow but in the intended manner.

 

So this contradicts your original statement ("as far as performance goes, single wins"), because you're using a single muffler system to deliberately restrict the engine's performance. Whatever your reasons are for doing that, it proves that muffler configuration is not what determines performance or flow.

BTW, my wastegate mods and custom DP allow my to run a modified S5 turbo with 3" exhaust and twin 70mm mufflers, and keep boost at 8psi.

 

I know, I know!

Exit it out the driver's side, and put another muffler that's not hooked up on the passengers side... there went the whole patching problem