EvoX: Q's about exhaust

[seph09]

almost done breaking in my X, and i was hoping to put on an exhaust from RRE...

my Q's is, is there a significant diff between a single and dual exhaust?
any opinion/advice would be great guys!

O0 O0 O0 O0 O0 O0 O0

[ucb]

doubt it

[Skiracer]

I don't have any scientific data, but i assume exhaust flowing out of a single muffler would be less restrictive than going out of 2 mufflers.

[Sam Smash]

stop by and check out the greddy tic!!

[seph09]

I don't have any scientific data, but i assume exhaust flowing out of a single muffler would be less restrictive than going out of 2 mufflers.


my thoughts exactly, i thing it was proven w/ S2000s...

any S2k experienced owners her? pls shed some light...



stop by and check out the greddy tic!!


damn you got parts in stock already??? DEALS!

[Sam Smash]

come by for evo x deals!!! smash

[Mightygnu]

oooo i like deals!

[Blak94GSX]

Yeah there is no real performance difference between 1 or 2 tips, it is just for aesthetics.

[Mightygnu]

Yeah there is no real performance difference between 1 or 2 tips, it is just for aesthetics.

Correct, I have a Tanabe exhaust for sale, check my sig!

[D34D M34T]

The EVO X muffler is a single unit with a single central inlet and dual side outlets. No "two mufflers." You guys crawl under an X?

[EvoDude]

true dual exhaust might make a difference since its single pipe for each side all the way through. others are stated above, are single pipe to dual muffler exit.

[05CBR]

^ true dual exhausts would only be possible with a v6 or v8 and anything above that, since those engine have cylinders on both sides of the block.

[xtremeboost]

almost done breaking in my X, and i was hoping to put on an exhaust from RRE...

my Q's is, is there a significant diff between a single and dual exhaust?
any opinion/advice would be great guys!

O0 O0 O0 O0 O0 O0 O0





Less weight !

[srjohns]

The difference in power is probably negligible... what you need to look at is aesthetics and weight concerns.

[melachu]

Personally, im thinking about getting the ultimate racing dual exhaust. I just dont think its aesthetically pleasing having 1 muffler on one side while the other side is empty. IMO if the car came with a dual tips.. then keep it dual tips.

[Blaze]

The average person will not see a major performance difference between a single or duel tipped system. And there are singles out there that make less power then a duel and vice versa.

From an aesthetic stand point, my opinions are not applicable to everyone. My primary concern with a single verses duel system would be what the JDM aftermarket will come up with for body kits. You are going to look ghey as fok rocking your C-West duel exhaust rear diffuser/bumper with only one tip.

From a performance stand point, I would reference what little I know of physics and that is every time air/exhaust hits a corner, it's going to slow down. Once it slows down, it's never going to speed up again. What it will do is create turbulence and back pressure which is rarely beneficial. That said, a duel system exhaust will have more bends then a straight back, single.

Sound is another consideration. Single is likely going to be a lot louder/deeper then duel.

[Mike W]

Here are the exhausts we have been building for the EVO X:

All systems are 3” diameter straight through, no restrictions. By default hey use Magnaflow stainless steel mufflers and perforated core resonators (not the louvered style). We need the car for a day usually. Of course we have lots of kitty cat options we can discuss at the time of the exhaust build.

Single Stealth:
Black, no tip $530 installed
Brushed SS muffler with 3.2” tip $560 installed

http://roadraceengineering.com/evox/rreexhaust/mbpics/singlestealth-.JPG

http://roadraceengineering.com/evox/rreexhaust/mbpics/singlestealth-center.JPG

http://roadraceengineering.com/evox/rreexhaust/mbpics/singlestealth-tip.jpg


Dual Oval Mufflers : Can be black or brushed SS finish. Can be had with or with out tips.

Black no tips $670 installed
Brushed SS Finish with 3.5” tips $730 installed

http://roadraceengineering.com/evox/rreexhaust/mbpics/blkside-undercar-02.JPG


http://roadraceengineering.com/evox/rreexhaust/mbpics/blkside-y.JPG


http://roadraceengineering.com/evox/rreexhaust/mbpics/blkside-tips01.JPG


Sideways muffler if that is your thing:
Stealth Sideways Style $625 installed
Bling Sideways Style $685 installed

http://roadraceengineering.com/evox/rreexhaust/mbpics/sideways-bling-rear.jpg


http://roadraceengineering.com/evox/rreexhaust/mbpics/sideways-bling-tips.jpg


http://roadraceengineering.com/evox/rreexhaust/mbpics/sidewaysstealth-01.jpg


http://roadraceengineering.com/evox/rreexhaust/mbpics/sidewaysstealth-all.jpg


http://roadraceengineering.com/evox/rreexhaust/mbpics/sidewaysstealth-center.jpg


http://roadraceengineering.com/evox/rreexhaust/mbpics/sidewaysstealth-rear.jpg


Do you like things rowdy? All resonators. Not as loud as the east coast/mid west mufflers. Mellow edge, deep, loud, excellent bouquet.

Dual Type-Chris Exhaust $620 installed
Single Type-Chris Exhaust $530 installed

http://roadraceengineering.com/evox/rreexhaust/mbpics/typechris-onfloor.jpg


http://roadraceengineering.com/evox/rreexhaust/mbpics/typechris-rear.jpg


http://roadraceengineering.com/evox/rreexhaust/mbpics/typechris-tips.jpg


Mike W

[seph09]

Mine is the first pic and I gotta say, I LOVE IT!!!! you should show the rally cat you made for me!

[AaronI1]

Ooh, my Car is the Octane Blue with the Stealth Sideways exhaust. I love it.

[Mike W]

Also now have 3" stainless steel EVO X Dpwn Pipes too. They come with a second fitting for a wideband O2 sensor. Comes plug off bolt if you dont have a wideband O2.

$160 for the DP.

Install is $40 if we are installing an exhaust, $80 all by its self.

http://roadraceengineering.com/evox/parts/mxpdownpipe/xdp.jpg


I have some Ultimate Racing long O2 housing DPs coming too.


Mike W

[AaronI1]

Mike, would a retune be necessary if i get your DP?

[Mike W]

That should not change things tuning wise.

Mike W

[fastkevin]

From an aesthetic stand point, my opinions are not applicable to everyone. My primary concern with a single verses duel system would be what the JDM aftermarket will come up with for body kits. You are going to look ghey as fok rocking your C-West duel exhaust rear diffuser/bumper with only one tip.

I consider myself that's 99.9% function, and .1% form. That said, I think I would stare at the back of my car with disdain if I went with a single exit. The stock rearend is made to accept dual outlets, and without one of 'em it would look like a part fell off. As you wrote, if the aftermarket embraces the dual (as I expect) it might even look worse.

[viciouz]

Sorry to resurrect an old thread MIKE, but do you have dyno's for the Downpipe? And whats the rally cat?

[Mike W]

No before and after with a shorty down pipe. It helps but isnt going to be a day and night difference.

I have Ultimate Racing long down pipes coming Oct 14th. $375. Those should make some decent power.

http://roadraceengineering.com/evox/parts/ultimateracing/EvoX-O2Housing2.jpg


http://roadraceengineering.com/evox/parts/ultimateracing/EvoX-O2Housing5.jpg


http://roadraceengineering.com/evox/parts/ultimateracing/EvoX-O2Housing3.jpg


We'll get someone to do a dyno test with one I am sure. But I think it was shown back in the Silurian period that a big swoopy 3" pipe flowed more and made more power over a tight cast iron small housing.

Mike W


Mike W

[viciouz]

Mike

How hard is the install for the DP on a scale of 1 to 10? How about the exhaust?

I want to do the installs myself, but I don't' have a lift. All I got is ramps and jacks

[Mike W]

Well my 5 miight be your 13 :-P One of the turbo to O2 housing bolts is pretty tricky to get at. It will take some patience and some of those ratcheting wrenches. WD-40 everything a few hours before.

Standard care with stuck turbo bolts is necessary. If something starts to get tight, reverse, spray it with lube and slowly work it forward and reverse to get it off. If you just power through a stuck bolt or O2 sensor you will gall the threads pretty bad.

If you unbolt the turbo wastegate actuator it helps get some clearance to get to the tricky bolt. Taking the front right wheel off can get a different angle at some of the nuts and bolts.

Mike W

[viciouz]

Alright Mike, put me down for the Dual Oval stealth mufflers without brush/tips and an ultimate racing downpipe. I'll be stopping by in like 2 to 3 weeks.

[Mike W]

The Ultimate Racing down pipes are in stock. They look even better in person!

Mike W

[neveronlineten]

I have no experience with the Evo yet but I do have lots of experience with the S2000.

Being its an NA motor I dont know how much you could carry over to the Evo though. The best for midrange and top end power for the S was non resonated 70mm singles (singles also shed more weight than most dual so thats a benifit too). With most of the duals I had on it the car seemed to have more low end (probably do to the piping size since it was smaller than 70mm). Low end was better for the street but for the canyons and the track you want the midrange and top end power (specially on a car with very little TQ).

With the X its very easy to make power so I think you need to ask yourself what your goals for the car are and then make the decision about what exhaust best suites you needs/wants.

For my ten I want something quiet (so I dont have to deal with the cops) while having a little bit more aggressive note, so I will probably just get the HKS exhaust and midpipe put a drop in filter in and rely on ECU tuning to up the power.

If I was building a track car weight would be my biggest concern and sound not so much (unless the tracks have a sound requirement), So I would be looking for a lightweight non resonated Single outlet exhaust (prefferably in Ti to reduce weight even more).

Hope that helps :)

[skipsevox]

I Like the stock look but know the weight loss and gains of a single tip system would be more beneficial

[Chrispettingill]

Personally, im thinking about getting the ultimate racing dual exhaust. I just dont think its aesthetically pleasing having 1 muffler on one side while the other side is empty. IMO if the car came with a dual tips.. then keep it dual tips.


No way, I got the GReddy Ti-C and it is redic! I love that exhaust.

[dongchad]

hey mike wheres your shop at? id like to stop by. i already have the ur catback exhaust, i need the full TBE.

[Mike W]

Same address as on the bottom of all the pages on the web site :-)

13022 La Dana Ct
Santa Fe Springs, CA 90670
www.roadraceengineering.com

Epicenter of the EVO Universe:

http://roadraceengineering.com/evo/thegoogle.jpg


Mike W

[dongchad]

how much do you charge for insatalling the o2 DP ?

[Mike W]

how much do you charge for insatalling the o2 DP ?


$300 for the labor. It is some fugly work.

I have the ETS long DPs in stock. $700 installed.

Mike W