i prefer single exhaust for NA. that + bumper tuck . really comes down to preference as the numbers won't be THAT different. i'm a fan of the agency power single. you can always switch when u go FI. there will always be demand for used exhausts

 

Agency Power FTMFW!

 

its funny cuz angency power is exactly the one i was going for

 

i love my AP!

 

3" single is better for NA and way much lighter than a dual
I like JIC type 1 single and megan "AP replica"
you might consider a full titanium single as well
quite pricy but well worth the weight loss

 

Since this question keeps popping up and no one seems to be searching for it all relevant threads have been merged into one concise info thread

 

Dual has 2 exits, while single has 1.

 

There are plenty of single exhausts with 2 exits, the stock exhaust is one of them. This thread is about single VS dual off the cats, not the number of tailpipes

 

You ruined my joke .....Ruined it....

 

please note the following.
I am NOT asking what a true dual exhaust is, or what a certain terminology means.
I am NOT making a vs thread. Just asking for information.
I DID search. All I can find when searching "single canister/dual tipped" "dual exhaust, single canister difference." was just vs threads or only finding 'dual vs true dual, etc.

So my question is, is there any good reason to choose a single canister/dual tipped exhaust (Tanabe Medallion, Amuse R1, Greddy SP) over a dual exhaust (Tanabe Concept G, A'pexi N1, Greddy Evo) or vice versa?
Does one style make a deeper growl than another? Or does one style reduce rasp? Is there proven performance gain on one type, or is it all just personal preference?
I read somewhere I can't recall right now that the single canister/dual tip style helps reduce drag by having the air go around the muffler and not get caught by the back bumper.

And since we're on the topic of exhausts...
I read that the Z already has a decent exhaust system in terms of flow, and it's weight is really the drawback. Would I be good with just an axle back system to cut costs and make similar sound and performance as a full catback?

 

Bottom line...its a matter of preference.
The power gain difference unless you add other components is negligible.
Sound,again what you think sounds good.Weight factor,for sure some aftermarkets
are lighter than stock.My Nismo catback saves about 8lbs.Not enough weight savings
to add anything you can feel.The OEM exhaust sytem does a pretty good job.
The biggest bang for the buck would be to add test pipes or,HFC's.It will sound more aggressive and give you some extra HP and torque.

 

if were speaking of an NA car, especially our car..going too big harms the torque curve. You feel torque. Torque for a tongue in cheek defenition is the low end power.. whereas the HP you may gain by opening things up is only at its highest flow rates, and is a top end thing.. it moves that curve to the top a bit.

so, to answer your question, it is personal preference in terms of look and sound, as long as you dont go too big.. hence a single.
The X02 HKS knock offs are larger tubing than the authentic, and thats why that exhaust kills low end a touch.

so really, this thread IS about the difference between single vs dual exhaust and by reading those threads yo say you searched on, they will explain the theories and differences. Drag from a bumper? ah no.. not in the least bit.. not at all.

A single large pipe for guys w a single turbo makes an easier installunder the car.. same w duals etc.

Its about what you wnat,m and what your set up is going to be.
Rule of basic thumb tho is that if your NA, its all sound and looks, and be prepared to lose a touch of power down low.. curve moves to the top end a hair.

 

Thanks for the replies so far!

With just an exhaust and no tune or real engine mods will lower low end, but will just an axle back minimize the loss, yet get the sound and look I want? I could get the rest of the exhaust parts when I put more into it later, right?

 

Read this thread, you're basically asking what has already been asked and answered here several times

No reason to create another thread

 

I read everything in this thread, and all that was discussed was a single exhaust, and NOT what I wanted to know about; which is the 'stock style', single, larger mufflers that are parallel to the rear bumper and has two pipe/outlets. Many of these have that stock look.

Single(the ones discussed on this thread, and often incorrectly directed towards) - Y-pipe to single pipe as straight as possible to the back.
Dual(I'm comparing this to what I'm looking for) - Like a single, but with essentially another y-pipe to fit two separate mufflers.
True Dual(Has nothing to do with anything I'm asking for) - essentially two full single exhausts.
Single Muffler/Dual Tip(What I'm having hard time finding info for) - Y-pipe to a single pipe that bend sharply into a large muffler, and then finds it's way out of two tips that also have sharp turns to face the rear of the car.

I'm trying to figure out if these extra bends and the larger muffler have any positive or negative(negligible or not) effect on sound and performance.

Please don't tell me it's all personal preference... i know it is... I'd like to know if it's safe to say 'type A exhausts will usually sound/perform like this. Type B exhausts will usually sound/perform like this...' and so on, so I can make my decision faster, and better by searching for what matches my personal preference.

I believe the differences between a single exhaust(like the ones discussed in this thread I was merged with) and the single muffler/dual tips I'm asking about are enough for me to start a new thread.
I don't believe I'm beating a dead horse or asking questions that have been answered many times. If I did, I would've found my answer by simply searching "single muffler dual tips" or anything of the like.

 

So go ahead, what's your specific question you most want to know?

 

^^^^This^^^^
Some people have answered saying I'll lose here, gain there, but it's a negligible amount, and it's personal preference, and I already said what I'm looking for, so I'm hoping people will help me out further.
I've looked on youtube, and our stickies, and googled it, but only a few sound clips and videos have shown up, or they were modded more than I plan on.

 

No, it's NOT safe to say that type A exhausts...blah, blah, blah.

Exhaust performance and characteristics has much to do with each munufacturer's specific design. A manufacturer can have 2 single/dual tip exhausts that sound and perform differently thanks to the design...flow, more flow, less flow, etc..

I suggest identifying the exhausts that you're interested in wheter that may be looks, sound, or whatever and then researchign the manufacturers site for details in performance. Then try to corroborate the statements on the manufacturer's site to ensure accuracy if you really want that much detail.

I also suggest reading up on performance exhaust design...simple google search should suffice. Here is a link to get you started.

http://www.epi-eng.com/piston_engine...technology.htm

 

Well, what kind of sound do you want? ?Do you care about weight reduction? Is cabin noise a concern? It would be easier to answer your question if we know what youre after, rather than list every single pro/con of all the exhaust types.

Hard to believe you only found a "few" sound clips on YT Try a few thousand. I dont think you looked hard enough.

 

I'm looking for an exhaust with a low mellow rumble, and try to stay away from the high pitch whine/rasp in the upper RPMs.
Cabin noise is not much of a concern, but nothing so loud that cops will want to hassle me over.
I don't want too big of pipes because its a DD, and I don't want to lose too much low end, or wake up neighbors in the mornings/nights.
I'm okay with either style visually, but I'll choose one over the other if there's a significant weight difference that I can easily notice in the butt-dyno, or the Gas milage.

A lot of the sound clips I found were really crappy quality, or was a highly tuned track/show car. I found a good one of a Tanabe Concept, and Greddy SP , though, and both are top on my list.

Thanks to those that actually helped me out, instead of skimming my posts and thinking its something else