Exhaust: Y-pipe or Dual out

[tygrrwoods]

Hey, I was wondering if anyone knows if a single in/single out muffler with a y-pipe on the out, for dual out, will perform just as well as a single in/dual out muffler.

The reason I"m asking is because I can't seem to find the muffler I want. Gibson makes a 2.5" single out/ 1.75" dual out which would almost be perfect but its doesnt come in stainless steel, the lay down salt here in MI.

So, basically I'm looking for 2.5" single in/ 2.5" single out with a y-pipe or 2.5" single in/ 2.0" dual out.


Thanks,
-tygrrwoods

 

[cculter]

I have a flowmaster 3" in dual 2.5" out. I also live in Michigan. I haven't had any problems so far, and I love the sound I get from it.

 

[Dan Whitaker]

From what I've heard the Gibson stainless steel rust as bad as the non stainless

 

[tygrrwoods]

I have a flowmaster 3" in dual 2.5" out. I also live in Michigan. I haven't had any problems so far, and I love the sound I get from it.

Is yours aluminized or stainless steel? I don't want to have to replace the exhaust system till the car craps out.


Also, I have a SOHC so I don't want it to flow too freely.

From what I've heard the Gibson stainless steel rust as bad as the non stainless

Well then its not stainless then, eh? I believe stainless steel shouldn't rust period. Its just turns colors.

 

[4X4_'97_Sport]

when i had my dual exhaust done i went with a y pipe after the cat and ran the mufflers after the y pipe

 

[Afboy143]

DEF A Y pipe, and dont make the exit pipe any bigger than 2.5"

I had dual 2.25" pipes. I then replaced the muffler from a DUAL in to a Y pipe to a single. 2.5" in and I noticed a huge low end torque increase. Just do a 2.25" to 2.5" Y pipe and get a single muffler that is 2.5" in/out.

 

[Afboy143]

 

[tygrrwoods]

Hm..I dunno if I was specific enough.....

I'm try to put in dual out exhaust. Since dual 1.75" pipes have approx. the same area as 2.5" pipe.

4.81 in^2 (dual 1.75")
4.91 in^2 (single 2.5")
6.28 in^2 (dual 2.0")
7.95 in^2 (dual 2.25")

Since dual 2.0" is a lilttle bigger and with the muffler being the main point of restriction. Then this might be a middle ground ( i got that from one off a search, sorry i didn't quote you). So really this is what I'm shooting for.

So basically I'd put the y connector pipe after the muffler.

 

[Afboy143]

Hm..I dunno if I was specific enough.....

I'm try to put in dual out exhaust. Since dual 1.75" pipes have approx. the same area as 2.5" pipe.

4.81 in^2 (dual 1.75")
4.91 in^2 (single 2.5")
6.28 in^2 (dual 2.0")
7.95 in^2 (dual 2.25")

Since dual 2.0" is a lilttle bigger and with the muffler being the main point of restriction. Then this might be a middle ground ( i got that from one off a search, sorry i didn't quote you). So really this is what I'm shooting for.

So basically I'd put the y connector pipe after the muffler.

Got ya

Does the '03 SOHC have dual in/single out mufflers stock or single in/single out?

 

[cculter]

Is yours aluminized or stainless steel? I don't want to have to replace the exhaust system till the car craps out.

Aluminized

 

[tygrrwoods]

Got ya

Does the '03 SOHC have dual in/single out mufflers stock or single in/single out?

Its single in/single out from the cats. I believe 01+ sports and STs where the same way, but I wouldnt quote me on that.

So I found a Y-pipe connector by magnaflow...but its aluminized :fire:
Someones, doesnt want me to have stainless.

 

[Afboy143]

Its single in/single out from the cats. I believe 01+ sports and STs where the same way, but I wouldnt quote me on that.

So I found a Y-pipe connector by magnaflow...but its aluminized :fire:
Someones, doesnt want me to have stainless.

I have a magnaflow Y pipe which is shown above

Why not get a single in/dual out muffleR???

Just spray the Y pipe from time to time with high temp black paint to prevent rust

 

[tygrrwoods]

Is yours aluminized or stainless steel? I don't want to have to replace the exhaust system till the car craps out.

Aluminized

How long have you've had it?

I have a magnaflow Y pipe which is shown above

Why not get a single in/dual out muffleR???

Just spray the Y pipe from time to time with high temp black paint to prevent rust

2.5'' single in/2.0'' dual out, chambered, stainless steel muffler doesn't seem to exist!

 

[Silver X]

I have the stainless Gibson single exhaust kit on my '01 Sport. Its been on for about a year now and through 1 Michigan winter. It did develop minor rust scale since its a lower grade of stainless than the type that doesn't rust. Its like the stock system...they're usually a low grade stainless, and we know those rust out eventually. The exhaust tip is the higher grade SS and it has no signs of rust yet.

I don't remember the numbers for the types of SS they use, but I can look it up when I get home from work.

 

[Afboy143]

It's usually a good idea to always spray your new exhaust with a high temp paint when you first install it. From time to time, check for rust and if found...spray it. This is what friends at a shop told me when I got my first system installed and it works quite well on minimizing the rust.

 

[tygrrwoods]

i thought of coating the pipes with paint, but wont it rust from the inside out first?

 

[tygrrwoods]

bump

 

[spindlecone]

i thought of coating the pipes with paint, but wont it rust from the inside out first?

NO
Just spray it with aluminized paint, no more worrys

 

[dkchrist]

stainless gibson kits have lifetime warranty on them. gibson will replace it if it rusts through with the stainless