5SPD07GT

yeah thats what we thought too but to eliminate a another run to the parts store we picked up both, just to be sure. The 2.5 donut was just too big and the 2 1/4 fit in perfect. Worked like a charm. Remember the donut sits down inside the flared/trumpet end of the x/h pipe.

dimebag

I run a donut too, for the same problem... I'm using a 2.5 tho

OutlawSS

The part number is right there in the pic on the bag-31511. lol
Sherri-CPP Advance Auto

MCxQubed

you do understand this thread is a year and a half old right. lol

dwtjr3

+1^ lol, but man i need one of those donuts too my drivers side leaks too

Soldier GT

^^Wow!!

OutlawSS

I know it's an old thread, but I was reading it I just couldn't stand it! LOL Thanks for the info though, my daughters 'stang may not be a Cobra or a Shelby, but it still has an exhaust leak!