http://chevroletpower.cz28.com/images/dual12.jpg
http://chevroletpower.cz28.com/images/dual15.jpg

I would love to have a set up like this. It's a 3"pipe and they do sell it. As priced with the mufflers and 2 hi flow cats they wanted $1300. Is it just me or does this seem a little steep? Is there a better way. Not to mention to get the true benefit id have to replace the slp headers that are on the car with some hedman ones because the hedmans have 3"collectors. opinions and thoughts please. He says he uses heavy wall pipe...How hard would it be to just create this system my self?

 

why do u want true duals neway? u dont gain that much for all the $$ u spend and u will prob. loose some torque in doing away w/ the Y-pipe. i think ive heard of people gettin it done totally custom and i think it was cheaper than that,cant remember for sure though. and if u ask me,have the muffler right out the back of the car looks goofy as **** to me lol

 

Getting mine done exactly like that Doug, i have showed the pictures to the one of the best garage shop at my place and says he could do it to me for about 1500$ Canadian.

In my case it's worth the try...

 

i would really like it partly for the hp increase and i dont really want to hear the whole torque thing because pro dragsters dont even have an exhaust and one of their primary concerns is getting off the line hard and fast. I also want it for the never ending quest to make my car different from every other camaro out there and as much as i dont like to admit it i also want it for the effect on sound itd have. But really with all of the other things i want to do to the car it doesnt make sense to spend that kind of money on something like that.

Where is this shop? I am also looking at getting some kenny brown sfc's soon and from what i hear you really need a good shop to do em because theyre kind of tricky. I need to find a good shop somewhere in the southern ontario region for any major work that i need to do

 

[QUOTE]Originally posted by doug791
[B]i would really like it partly for the hp increase and i dont really want to hear the whole torque thing because pro dragsters dont even have an exhaust and one of their primary concerns is getting off the line hard and fast.


comparing your car to a pro dragster is like apples and oranges.
you are not leaving the line at 8000+ rpm and you also dont have huge amounts of torque and horsepower.

 

fair enough but ok two things first of all hopefully at some point my car will be putting out some rediculous amount of hp and second i would assume the loss in torque wouldnt be enough that i wouldnt want to do it although i have never seen a dyno test of this sort of thing so my convictions are a little weak there.

All that being said i would absolutly love to do it but cost wise i just cant handle spending that kind of coin for my exhaust right now

 

I would look into it more before dropping the cash. I think I remember reading something a 3 1/2 pipe single exhaust system was about on par with the 3in duals. I would check out the exhaust section at www.thirdgen.org . You may just want to get a cut out for your system.

 

My shop in the city where i live, Val d'Or in north Quebec, (about 4 hours from North Bay).....

It is called Garage St-Maurice, heard is the best for making exhaust.....

 

You will not lose torque doing away with the Y pipe, especially not if you run an X or H pipe.

 

The only reason that people, especially in the third and fourth gen world claim that single exhaust is just as good as dual is because people like to think that what they have is best. If you use PI*R^2 on a single 3 1/2" pipe and two 3" pipes, you will find that a single 3 1/2" pipe has an area of 9.62 square inches. If you do the same calculation on a single 3" pipe, we get 7.065 square inches, multiply by 2 and we have the area of dual 3": 14.13 square inches. Dual 3" exhaust is nearly 5 square inches bigger than a single 3 1/2" pipe. But most people on this board dont need a dual 3" setup, especially on mild TPI cars. So lets look at a single 3 1/2" pipe vs dual 2 1/2". We remember that a single 3 1/2" pipe has an area of 9.62 square inches. Now if we calculate a single 2 1/2" pipe, we get 4.91 square inches. Multiply this by two and we get 9.81 square inches for dual 2 1/2" exhaust. This is still more volume than a single 3 1/2" pipe.

Am I saying that everyone can benefit from dual exhaust? No, especially not a mild TPI car. But on my car I switched from a 3" single exhaust setup to a dual 2 1/2" setup with an X pipe, and I definately, definately noticed a power and torque increase.

 

Brought the same engine as you 12Second3rdgen so i will benefit from my 3'' dual setup better that a single Y setup.

What you think?

 

I just want to see how you are planning to install 3" duals like the pics show. Those are 2 1/4 pipes in the pics. I just installed a 3 1/2 Mufflex system on my Z and it was tight over the axle.

 

That is a very sweet system, but without some nice modification up over the axle area, there is absolutely no way to fit TWO 3" pipes.

2.25" pipes are very cramped, and it's been done with 2.5" before also.

It is possible to do two 3" over the axle, cause I've seen pics before, but that was with something moved and relocated. I can't remember exactly what it was or how it was done. Anyways, good luck! Duals own.

 

umm im pretty sure the ones in the pic are 3". Cant verify for sure because the place could be full of crap but they claim theyre 3" duals.

And while i wouldnt get too much of an increase off of my current tpi setup over the next few years i plan to do some major mods like a 383 stroker/mini-ram and other obvious mods etc. so when all of that happens i will definitly get a major boost from the duals

 

I could probably benefit from dual 3" since I have gone to 10:1 compression, an XE274 cam, proffessional port work and a victor intake, but dual 2 1/2" with an x pipe should be fine for you. I am just not a big fan of single exhaust setups.