From the guy in Brampton?A few months ago I purchased a brand new twin tip muffler off kijiji for 50 bucks. It looks just like any saab 9-5 muffer so i figured it would fit. Turns out the mountings are different at different locations/heights and I cant hang it up on my car.
I think muffler compatibility has more to do with what year your car it is, than what engine you have. My car is a 2006 and it did not work.