1988 gxl y-pipe type exhaust. have my hands on a midpipe, don't know if it will replace stock cat. what size is stock exhaust?

 

someone could at least flame me and shove a link at me. eh?

 

measure it yourself.

 

makes perfect sense


i would do that.

 

erm, i think 2.25" before the Y. T2s are 2.5"

I'm fairly sure but not dead positive.

 

Are you looking for length or diameter?

 

I am wondering about this also. I bought a s4 TII off ebay and the guy delivered it to my uncle in Nevada. I am still trying to find the time to go get it. I am slowly buying parts for it and was looking at buying some HKS mufflers. They are a 2.5 in input and I am not sure if they will fit the stock exhaust.

 

I am pretty certain that the stock y-pipe inlet/cat outlet is 2.5". I know this because many aftermarket cat replacement stuff (RB for example) is 2.5" and it bolts up to the stock y-pipe.

 

thats what i was looking for...sounds logical.

as did the "do it yourself"....but my ramps are about shot and backing onto them in my driveway sounded like a better plan B.


thank you.

 

but nodes never wrong...seriously.