Ive got an 86 IROC. Who makes a Y-pipe for long tubes. I cant seem to find one anywhere.
Where do you suggest I look. Exhaust shops around here charge you out the *** and if you dont have smog they wont do it.

Does anyone manufacture one? And if so.....where?

Thanks,Dave

 

why not run duals with a h-pipe? just a thought.

11.60-1/4
1.58-60 ft
116-mph
150 shot

 

Ive heard you can do that, but would it clear the rear axle? I was thinking of that being an option as well.

Is that what most people do?

 

i run dual pipes with h-pipe into flowmaster mufflers with dumps so i don't even go to the rear axle.

 

You can run true duals using the stock routing the whole way back and it'll clear, but that means a lot of bends which means restriction. A lot of guys use a short exhaust which dumps right before the rearend (me included) but if it's not done carefully it will drag over every little bump in the road. And it DEFINITELY won't pass a smog test.

 

Yup True Duals here also..... I need a H pipe in there.... My exhaust exit from the side like a AAR CUDA

check it out!
http://www.fl-thirdgen.org/da%20beast.html

 

From what I understand....if it dumps before the rear axle, its loud in the car. I really would like to have 4" over the axle. Better performance and clearance issues wouldnt be an problem.

 

In that case, you're probably lookin at a custom Y-pipe. There's not much point in a 4" I-pipe and rear section if the Y-pipe is only 3" because that's just moving the restriction, not fixing it. The only longtube Y-pipe I know of is from Mufflex Y-pipe but it's only a 3".

 

You will be fine running the Mufflex Y-pipe. There is very little restriction in the Y-pipe if any at all. A 4" from the y back will fine as well. The mufflex y-pipe is 3 inch. But its not like its a single 3 inch pipe. A dual 3inch which the y-pipe is flows more than a single 4". One thing that must be considered when thinking about flow rates is that dual pipes of certain size will flow more than a single pipe of a larger size. And a Y-pipe is two pipes that will merge at a certain point, then to the intermedate pipe. So running the Mufflex Y-pipe should cause little to no restriction.

 

If the output of the Y-pipe is only 3" it will be restricted as compared to a 4" pipe. If it were 2 3" pipes coming together to a 4" output, that would be perfect...but I don't believe that's how it's made.

 

I'm not really sure which it is. They never really say on their site. I know a buddy of mine had the 4th-gen yipe, it was a 4 inch out. So one would think that the third-gen Y would be the same, but who knows.

 

My lowest point is right under the tranny crossmember where I have 3 inches of clearance. I run longtube true duals with the mufflers being under the rear seats that i dented up some.
I don't see how a y-pipe will gain you any room as you still have to go under the tranny cross member

 

I believe it goes on outside of the cross member.

 

The Mufflex doesn't go outside the crossmember...it's either above or below and I don't know which. The two header-pipes run down either side of the tranny pan and the Y is almost directly below the front U-joint. It seems possible to run it above the crossmember, but I think it would be awfully short on clearance. If I had to guess I'd say it goes under (just because it would be easier to fabricate that way.)

 

It goes under. The only way to go through would be with a manual trans, and then it would be tight!