ONEQWICKSCIONXB

GUYS U DID AN INTAKE ONE NOW DO ONE WITH THE EXHAUSTS AND POSSIBLY HEADERS ON A STOCK XA or XB?

Companies involved should be.....

DC Sports
Tanabe
TRD
C-ONE
BORLA
5Zigen
BLITZ
INJEN
SPY
JIC
EL Prototypes
SPFR
Stylis manifold back system
Any custom ones tooo.

Im sure everyone else would want this done too thanx....

DJ_SpaRky

I agree, they did intakes, why not do exhaust too.

hahajoey

i think JIC should be added since a few people have it.

and i believe EL prototypes makes a header and exhaust
system as well.

Guest

care to add a stylis manifold back system to the list? I've done the dyno.

Besk_one

how about the SPFR cat-back system too??

i voulenteer my car if you want to use it, since you could put all the axle back cans on and then stylis's manafold back system and then cut my stock exhaust and put on the SPFR cat-back system (since i'm getting it anyways).

ONEQWICKSCIONXB

Come u gotta do it now there is an outcry of people wanting it cummon pleeze do it....

Scionic

As much as I love to do it, I'll probably get the same sh!@t I got it from the intake shootout so let's just leave it up to professionals so they can argue over the results.

Also it would be kinda unfair competition because some are axle-back bolt ons while others are cat-back (with cutting involved).

Now headers would be a different story.....

ONEQWICKSCIONXB

Then do the headers so we have an idea with them.....

Scionic

So far there I only heard of two headers that are readily available for the xB....that's not worth it right now.

UrbanDrum

I'll help you ONEQWICK....Send me one of each and I'll pay for the rest

ONEQWICKSCIONXB

FUNNY

Guest

Yeah , man. me too. I can help you out on the dno also, just send ME the parts. Now how about adding that stylis manifold back system to the list.

oj411

also the RSR
http://www.optauto.com/webstore/prod...=yes&dept=3853

its_ikon

exhausts will take some time to install, so they might not get through all of them in one day.

Guest

need an extra exhaust guru to help you guys out? :D Let me know when and where and I might swing by.

SPAWN

how about an exaust cut-out, it is illegal, but i plan on doing it. if it works i garrantee more hp than any other exaust system, it will be cut out right past the headers, before the CAT. NO RESTRICTION AT ALL, FREE flow straight pipe. when i get it i will dyno it and post the results.

Guest

Eric M might still have the exhaust system I built for him. I think he is still selling it and it is already wide open. :D

TheRedBox

For NA Cars not making Gobs of power, Im a firm believer in back pressure. For cars with forced induction you are going to want no restrictions at all. With our motors being as small as they are (and making as much power as they do), I believe an open exhaust like that would do more harm than good, but please post results. :D

kdanie

A dyno test of this magnatude would be hugely expensive, I'm not holding my breath until this happens.

I have to disagree with back pressure being necessary. Science has shown it is not, what is critical is the primary length and diameter but even more so the collector diameter and length to the atmosphere. It is directly related to RPM targeted, HP level of the engine and cam specs. From what I have seen, the engines that responded well to a slight increase in back pressure did not have an exhaust header/sysem designed specifically for that engine configuraiton.

The exhaust cut out could help or hurt depending on how it is set up and fabricated.

I have done a lot of reasearch on header/exhaust design and have some experience with small displacement (2.0L engines) BMWs and aircooled VW/Porsche's that operate in the same RPM range as these little 1500s. I think a complete state of the art low restriction exhaust from the ports to the bumper would show significant gains in HP as long as the intake/fuel sys and ECU could keep up. I would love to fabricate a state of the art header/exhaust for my Xa and see what happens.... I might be able to get it past the smog ****'s- "Of course the Scions come with a tubular exhaust header, just call the dealer and ask them".... Might work.

As a side note, you would be amazed at how few headers are actually developed on a dyno using scientific testing standards. Most are just welded/bent up to fit easily and have NEVER been correcty developed. Sure, some mfg will run it on a dyno afterwards so they can claim a specific HP gain but that header is leaving a lot of HP untaped. Real header development is expensive and takes time and a really good header will not bolt up to any stock exhaust and if it did it would not work very well.

HP and handling is KING.... Screw the BLING...
ken

jackmott

dyno and track testing disagrees with you.