3 1/4" exhaust?

[TB2K]

Ok when I bought my car the guy "threw in" a cat back system he had bought and never installed because he sold the muffler to his friend and cut it off. So I figured ok he already broke lose all the seals in th system anticipating the install so now I have exhaust leaks, so I'll just get a muffler welded up here at work and bolt the system on. Last night I measured the cut area of the pipe and it was 3 1/4" does this sound right? I'll take some pics tomorrow and throw them up here.

 

[kronus]

3.25 inner or outer diameter? Sound like you measured from outside to outside.

 

[TB2K]

I coulda swore I measured ID, I'll check tonight whenI snap some pics of it.

 

[Kalisko]

It could be a 3.25..I have 3.25 Turbo Back. Fun stuff. My turbo spools like whoa.

 

[tkelly27]

Haha, if you don't remember if you measured ID or OD, it's probably ID, and it's probably 3". I think 3.25" are out there, but I'm pretty sure 3.5" is much more common, although not nearly as common as 3". If it's a pre-bent system, there could be a 3.25" section

 

[TB2K]

wll I measured late last night whle dealing with the cat having kittens and the wife going crazy beause of it and tying to get to bed for work. So if I do remember right and it is 3.25 will it be hard to find a muffler? And yes it is prebent.

 

[kronus]

Shouldn't be, They're probably just slip the mufflers inlet inside of your piping, and if not, they'll 'massage' the piping till it works.

 

[jesselee69]

Get a 3.5" muffler and have the muffler shop expand and weld, should be easy for any good muffler shop.

wll I measured late last night whle dealing with the cat having kittens and the wife going crazy beause of it and tying to get to bed for work. So if I do remember right and it is 3.25 will it be hard to find a muffler? And yes it is prebent.

 

[mrallen]

i have never heard of 3 1/4 exhaust?

 

[DSMopar]

You still did not clarify if it was 3.25 ID or OD... sounds like it's ID which in that case it is likely thick gauge 3.5"....

 

[TB2K]

Ok I took some pics and remeasured. OD=3 5/16" ID=3 3/16"

You must be logged in to view this image or video.

You must be logged in to view this image or video.

So should I just get a 3" muffler and make it work or a 3.5" and reduce it down to what I have? Also does tha look like the right system?

 

[PieEyedPiper]

What setup are those pipe sections from? Looks a lot like the N1..but the N1 is puny and has multiple 2.25" neckdowns.

 

[TB2K]

No idea, they were thrown in with the car.

 

[TB2K]

Gonna shop for mufflers later, should I look for 3 or 3.5? Also any recomendations? I am on a budget though.

 

[rb25det510]

Gonna shop for mufflers later, should I look for 3 or 3.5? Also any recomendations? I am on a budget though.

I would recommend a thermal R&D muffler, but they arent cheap...

 

[vaboys2ndgen]

magnaflow muffler is what i ran on my 3" exhaust setup.

 

[kenamond]

Looks like it's a 3" exhaust until the axleback, then it flares to 3-1/4". It looks right in terms of hangers and such for a 2g AWD. I bought a Magnaflow 3" inlet, dual 2.5" outlet SS muffler for about $100 shipped (model 12198 from Summit Racing, good rep, within $4 of cheapest price). I don't think you'll find a good straight-through muffler that isn't rediculously loud for much less. You can get the can-style mufflers for about $50-$60+S&H (probably another $25 for shipping). But I got the Magnaflow because of the ANNOYING drone of the can-style. But then you need tips. You could just polish the Magnaflow tips, maybe cut them to a slant cut, or get tips welded on for another $100 (maybe a bit less, but that's how much mine cost). Bolt-on tips are cheaper.

Also, since yours is a cat-back, you might want to make sure that you don't need an adapter from the stock cat to the b-pipe inlet flange.

 

[TB2K]

Thanks alot everyone! I really appreceate all the help. As I get more of this maintenance and other work done I'll try to keep up to date pictures.

 

[jesselee69]

Please do...

Thanks alot everyone! I really appreceate all the help. As I get more of this maintenance and other work done I'll try to keep up to date pictures.

 

[kenamond]

I have a thread going related to my turboback install. Your exhaust is probably a bit different, but you'll still have some of the same issues I did. The link below is a tech-article-like post I added. But the thread it's currently embedded in also has more info about the muffler and tips. The 2nd page of the thread has some tips I was looking at, and the 3rd page has pics of the muffler and tips I ended up buying. I'm not done swapping the can muffler out with the new one and tips, so that's still a work in progress.

http://www.dsmtuners.com/forums/new...tion-fabrication-questions.html#post151431850