Anyone have measurements that I could give to a muffler shop to make me a midpipe? I'd take off my maincat and do it myself, but I live in an apartment complex and can't work on my car in the parking lot. I'd have to take it to my hobby shop but I can't do that till the weekend and then the muffler shop won't make me a pipe until next week.

 

Well, from my RB downpipe to the stock Y-pipe i used a 22" straight peice with flanges, and it fit perfectly

 

hhhmmm, will I need specific measurements for the flanges?

 

I didn't, I just went to the local Midas (muffler shop) and asked for a 22" pipe (2.5" in my situation) with the flanges (I brought in my old main-cat to show the flange I needed) and they made it up for me for $16, brought it home, and it bolted perfectly between my RB 2.5" downpipe and my stock cat-back's y pipe, works perfectly

 

my MP actually has offset flanges (\===\) it doesnt go straight, but points from front pass tire to rear drvr tire