anyone know the catback pipe size? im plannning to change out my resonator, need to know what size is my piping so that i can order correct size..

 

seriously.. no one knows this?

 

wild guess: 2.5" ? Most are 2.5"

 

I think their 2.25, I just went to a local muffler shop and had them cut and weld in straight pipes for $100

 

can anyone confirm? need a definite answer

 

Take a tape measure and measure completely around the tubing and divide that number by 3.142 to get the diameter of the pipe,eg if you get 7.855 (7 7/8) as a measurement then the pipe is 2.5".I hope this helps you.

 

I'm looking to swap resonators as well. What inlet/outlet size do I need to purchase?

 

I'm looking to swap resonators as well. What inlet/outlet size do I need to purchase?

 

2.25in if your staying stock. 2.5in can work as well.

 

OEM is not 2.25. It's 2 from what I read when I was shopping for exhausts.

 

From what I got measured two times I was updated at 2.25 hence the reason why my Res and Muffler is 2.5 since I could not have got them in 2.25.

 

I know this has been asked before but what is the exhaust diameter on a 3.7 AWD? I saw 2.5" in and 2.25" out then saw 2.25" out. I wrapped a tape measure around mine and got 7.1 around both in/out and then divided that by 3.142 and got 2.25". I am wanting to take out the factory resonators and replace them with smaller ones. Hoping that gives a bit more tone on the factory mufflers. Not looking for that deep loud sound. Looking for a light rumble. I am also going to remove that 3rd mid cat and possibly put on a j-pipe all at the same time. My brother is going to do the work on the side at his shop. From what I read the shorter the resonator equal more tone is passing through to the mufflers. With the factory being 24" would a 12" be too drastic?

 

will make little difference with stock cats.

 

Is the diameter 2.25?

 

It is my understanding, that 3.5L models have 2.25" diameter from Pre-Cats to 1-2 split/resonator where it becomes 2" to the mufflers. The 3.7L has 2.5" through until the 2nd resonator as well. I believe that is a big point of restriction.