Jimmy325i

I love my 4.5" tip. Looks totally bad *** and like it belongs.

Now when you get into the 6-8" melon launchers is when it gets rediculous. My old roommate had a 6" tip on his integra nad it looked plain stupid. Especially since the tip was maybe an inch long and the 2" center section could be plainly seen from several angles off the back.

You really need to ask yourself... Do you want 2" OD flames or 4.5" OD flames?

1987RX7guy

iTrader: (3)

well I don't like flames too much. NOT lol

I don't care about the flames size. I just don't like the way they look. I wanted the N1's before I saw them. haha

Rxmfn7

iTrader: (4)

Im going single mainly because of cost and weight. Do dual look better...yes. But in a N/A weight is a big issue, and if I can shave a few lbs off here and there, its going to help me in the long run. Im not going to make my car a POS by stripping it out, but stuff I dont need or dont care for (A/C, PS, Duals) can go. PLus its cheaper, which leaves me $$ for more mods..

mazdaspeed7

It sounds like ****, and doesnt add enough power to make it worth it. If you enjoy the weedeater on steroids sound, then go for it. BUT for every one else, a collected exhaust(whether dual or single muffler) will make more power, have a more usable powerband, and sound a whole lot better.

The weigh tissue someone brought up is total BS. If youre worried about weight, get a good muffler other than RB(good but heavy). I dont know anyone who could tell the difference in performance, or even measure a difference in performance from a 5-10 lb difference between a single and a dual exhaust using N1's or similar.

mazdaspeed7

I dont mean to burst anyones bubble, but trust me when I say speed costs money. Ive been there before, and I know how it is.

Dan H

Is it true singles make more torque than duals?

Rxmfn7

iTrader: (4)

About the weight issue, a full collected single will weigh 1/2 what the true dual weighs. (Im sure you know this. just saying..) Now Im not saying that I will notice a difference, just saying every little bit counts. Thats probably a good 35lbs or so.

Jimmy325i

I vote for the 35lb difference also. My duals were stock type and the whole piping from the header back was in the neighborhood of 80lbs. Reminds me I need to go find another gravel scale.

1987RX7guy

iTrader: (3)

Well my car sounded like a weedeater at first but then I realized that I had an exhaust leak at both pre-silencers and I adjusted the bolts and now it sounds a lot better. Sound is an oppinon anyways, yet I do not sound like a honda with a fart cannon Have you seen the Dual's dyno sheet how is that not a usable power band. You just keep getting more and more power as you go through the RPMs which is noticable even without a dyno to prove it.

skyypilot

Hmmm. Fart cannon? That's a good one. Look, my car has two cutouts in the rear "bumper". I would never consider a single outlet system. It would look like something was missing. To everyone, not just gearheads. Single exhaust would never be an option for me, NEVER.

Madrx7racer

I have 2.5" piping into Apex N1 single. I cannot complain. Yes it looks weird b/c the cut out is empty on the other side, but it has a nice growl that deepens on open throttle, kinda like a plane. I would go single. its all preference.

RotaryWeaponSE7EN

iTrader: (6)

I'm sorry I started this agrument I was just trying to make a point.

1987RX7guy

iTrader: (3)

Yeah

I ultimatly know that the duals will lose in the end. But I just won't go for a singe. Unless it is on an FB or FD

RotaryWeaponSE7EN

iTrader: (6)

There is nothing wrong w/ duals, its just most people w/ N/As plan on doing a Turbo swap and those N1's are the best type of exhaust for turbos. Except if u look at RE Amemiya there exhausts are totally different.

GarageBoy

uncollected duals (if you can find a nice corrupt testing station!)

Jimmy325i

Or live somewhere that cancelled their testing program. :thumbsup:

1RevvinFC3S

I have a question for Madrx7racer, do you have a first, second, or third gen?

Rx-7Blazin

ok duals do look better if your going for looks but dude i really could care less about what someone else thinks is wrong with my car you dont see to many pro racers with fake duels beacause they care about wieght and preformance not looks so if your going for looks go duals all the way if you just want preformance go single(Not saying single is better then TRUE Duals preformance wise but very afordable)

1987RX7guy

iTrader: (3)

I would get a single if i had an FB FD

mazdaspeed7

Have you ever seen a dyno of a car with a tuned collected exhaust? Quite simply, true duals are wasting the strong exhaust pulses of a rotary. And the power falls off as rpm's climb. You want to talk usable powerband? Whats usable about an exhaust that makes more power at lower rpm's? A collected exhaust only sacrifices a small amount of low end, for a very good gain in the upper half of the powerband. There is a reason nearly every IT racer out there uses a tuned collected system, and its not because race mufflers weigh 35 lbs(b/c they dont).

And where the hell did that 35 lb crap come from. I said in my earlier post that I was referring to good mufflers. Stock type muflers do not qualify as good mufflers in my book. Even the RB ones. Theyre well built mufflers, but dont flow that much more than stock, and weigh about the same. 35 lb mufflers do not belong on an rx7 if performance is an issue, period. Get something along the lines of the apex N1, corksport, HKS, etc, and see how much they weigh. I would say most weigh around 5 lbs each, some maybe coming close to 10.

True duals blow as far as Im concerned. I am still going to have dual exhausts on my car, but it will be collected. I get the power of a collected exhaust, and 2 mufflers for an exhaust note that doesnt make me wanna puke, or leave my ears ringing for a week.

rotary>piston

The amount of weight added by duals is insignificant. You think out of a 2700 lb car that 30-45 lbs will be significant? Filling up your gas tank will add more weight.

87GXLRX7

RotaryWeapon7 I dunno but i don't plan on goin turbo. Nor do i plan on going single exhaust!

OptimusPrime

iTrader: (1)

from what i know i may be wrong but for an N/A duals are better for a TII Single is better

Kenteth

im not, i just kicked the hell out of it and it fell on my friend *grin* hah. Though mine was pretty rusted out fake duals, it still weighs a hella lot

Kenteth

*cough* even though i have to special order everything... its freaking nice to be in the middle of smack nowhere