For those who have welded in a borla xr-1 into the mid pipe...what are its dimensions... I am going to do the same but when I was looking, I seen they have many sizes and shapes. width/height/length and in/out size is what I am asking. Does it make a difference in sound levels in the oval or round canister style? thanks for your help...

 

Oval is quieter(more deadening material inside).

 

You'll want the oval, 3" center in and center out. Judging by my Magnaflow muffler in the midpipe, if they have a size like 15x9, that would be the one.

 

thanks, you guys are awsome!!!

 

borla PN 40944

 

Thanks, this is the one I was thinking of getting . I was just trying to see if this is the size everyone recommends....