I own a 87 Iroc-Z with a worked 350 in it, currently it has 3 1/2" exhaust that exits out the passenger side in front of the tire. I am looking to put true dual exhaust on this car, I want the exhaust to exit out on both sides in front of rear tires. Does anyone know of anyone who makes a system for these cars like this, or of a custom company near southeast PA that would be able to help me? The car has super comp shorty headers on if this helps at all, looking to install 2 1/2" or 3" on both sides. Anybody..please help!!

 

I can't remember anyone who has done this so you will have to custom fab the pipes yourself instead of buying them. You will lose clearence so you will have to be careful going over bumps and even more so if you lower the car.

Which do you want? The muffler to exit out both sides of the car or to make something up? How many cats do you have? You might to buy another cat if you need it smog legal.

What are you trying to achieve?

 

You can buy a dual sys from one of the major header companies, I think it was headman, but you had to buy the whole sysw/headers and it had 2 1/4 pipesw/ two small mufflers tucked where the factory one goes, both tails on the driver side...
Take a look at my system I bought all the supplies at a truck warehouse for around three hundred all aluminumized mandrel bends in 45 and 90 degrees. One end of the elbow needs to be expanded at a muffler shop, then 3' pipe slips into both sides, It`ll take some time to fab but it`ll last forever. Slight clearencing of the spare tire well is needed for the 9" flowmaster to fit on the bitch side


http://www.cardomain.com/memberpage/487725

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OR you could go to this website and pay $1000 for a dual 3" exhaust that bolts up to Hooker headers. Click on previous projects at the top and you will see pics email him and he will make it for you. Sounds like he will do anything you want him to do for exhasut.

http://www.cp-performance.net/index.html

 

That is probably what you will have to do. Get it custom fabbed because no one makes it. Or to be more specific, no major exhaust manufacturer makes it in a production line. Therefore, it will cost much more. So the question is, why do you want it? It probably won't get you much, if any, power gains for the money you will pay. Therefore, you probably will be paying for the looks. So, how much money do you have to spend on this project?

 

A good flowing 3" probably won't even be much of a difference from true duals. Unless you're running something crazy under the hood that's got a whole lot of exhaust to get rid of, I'd consider an over the counter cat-back.

Most muffler shops can custom bend/weld a system to suit your wants.

-Corey

 

They cannot bend SS without some serious tools. Most time I have seen them try, the pipe just about crimps up and bends so bad it is not even worth it. In any case, if they bend some pipe, you are losing whatever you gain because the bends are crimping the exhaust and not mandrel bends.

 

Geuss I was thinking about those top-dollar Cali shops you see on TV

 

I'm sure they would too. Back in 94 when I replaced my muffler with an XR1 Raceline from borla, I asked them to make me a 304 stainless pipe with a 90 deg bend and they charged me $90 for the pipe alone. Also I think I had to pay to get a bracket to hook it up.

 

Any local exhaust shop can do it.....

I'm having mine done For $350.00.....

True dual's Straight out....... it's non of this sigle pipe Dual tipped retarded setup and no it ain't no the even more stupid dual's on the same side.....

It's 2 true pipes runing front to back..........

yes you can run them out Before the rear Tires That will fit fine and it look and sound awsome......

Good luck man Go for it

 

For $680 I can get a Borla system that is made of mandrel bent 304 SS that lasts for longer than the car probably will. This has plates you can change for racetrack or for street. For $400, I can get an SLP system that is made of 3 in mandrel bent 409 SS although they are the "stupid dual's on the same side.....". What is the nature of your $350 system? Materials used and bending process?

Besides appealing to the ricer's interests (looks and sound) can it make the car any faster?

BTW, I have disconnected the exhaust system in my car from the cat back and placed it in the car and ran a few laps with and without the system hooked on. Never saw any real difference which means, IMO, that the exhaust is about as efficient as the car needs and possibly more.

 

For $350.00 I get 2.5" stain less steel pipe front to rear with dual dimp's on each side like the Bandit's exhaust.....

2 silver Bullet Muffler's in stalled......

$350.00 speedy muffler service......

Cash money.

I hate guy's who say i got an awsome Daul exhaust and you look under the car and it's a single exhaust into 1 muffler with daul tip's.

I think it's the most stupidest exhaust i've seen........

you see I like my car's to sound good look and perform well.
but your right i'm stupid you got any car's in the 9.60's that are streetable?? prolly not but i'm the dumb a$$ Got it...

but i'm sure your more of fan of that car's that are 7 different colro's yea it's fast but it look's like A$$. But then again that is the hillBilly Hick way....Rock on REDNECK's Rock on....LMFAO...

But you know opion's are like a$$ holes every body has one.....

 

I`m also Very interested thats the same setup I want in my Z28 when I get my 383 with hopfully 400-450hp

 

Lets see now. For $350 you get what kind of SS? Was it mandrel bent or just bent using a regular pipe bender? I suppose it would be cheaper if you didn't have to go over the axels but is that the total package price as in parts and bending except the actual install so we can compare apples to apples? If you can get at least 409 SS with the same thickness as what SLP offers, we might be able to do some comparisons.

Maybe that is where we differ. I could care less if someone looks at my car and says the exhaust is stupid or gay or like someone once called my car a "dogamatic". My car is for my pleasure and not anyone elses' unless they are paying the tab. The day you write a sponsorship check and I accept it is the day I pay attention to what your opinion is on how my car looks (not you personally but you get the picture). I don't know about the dells but most of the ricers I see here are primarily concerned with how the car looks and what it sounds like and if it runs decent, so be it. I asked "Besides appealing to the ricer's interests (looks and sound) can it make the car any faster?" At no point was I calling anyone a ricer, was I?

Onto the "S" word. I believe I was qouting you when I said "stupid dual's on the same side.....". If I wanted to, I could take offense to it since that is the exhaust I am running. However I, once again, could care less. Could you point out to me where I said you were stupid because I sure don't see it.

So you have a car that runs 9.6 and is streetable. What's your point? A trip to Decatur IN could net me a few cars that run 8s and are streetable depending on the defination of streetable. By that I mean that some people define streetable as a fast car with no comforts whatsoever and needs to stay near home or the gas bill will be astronomical and others define streetable as being able to drive year round with street tires and all the amenities like AC, basic radio, etc and a change to slicks at the track and can drive cross country at the average gas bill.

No, I am a fan of cars that look like any other car but go like hell. As long as the car is not rusting and can run like a raped ape, I'll be happy. I am interested in the demonstration of speed and not the advertisment of speed. Low timeslips get my attention not loud cars with wings and neon lights.

Yes opinions are like a$$holes and everyone has one. Some stink more than others.

In flounder's case, any exhaust, anything more than a 3 in one in one will probably not help him. I'll bet that if he were to run with a decent 3 in he will be just as fast as if he ran with a 4 in or even if he ran with it disconnected from the cat back. It doesn't matter how much you can flow thru the pipe as long as it is more that what you need. If he flows 200 cfm, it matters little if the pipe flows 300 or 1000 cfm. Unless, of course, it is your opinion that he is flowing more than a 3 in SLP or 4 in Mufflex system can handle.

BTW, I was just following the advice of some guy, lets call him John L. (currently deceased) who told me that an NA 383 would not really benifit from that much more exhaust flow when I asked about going with some better exhaust. Last time I visited his shop, I saw some cars there that he would have to fix if they ran a 9.6 time so I think his advice is probably decent.

 

He called it a dogmatic? hehe