I put them on my car and man are they sweet sounding GRRRRRR. It sounds like that growling there way past traffic and the competition.

 

now why cant the 40 series work? my friend used to work for gm for about 20 years and he said that it would work, it would just be a tight fit? I want to put them on too and i like the sound of the 40 series, the 80 didnt impress me.

 

ahahahaha!!!!!!!!!!

Im SO doing that!

 

dont get caught up on a big name, im runnin magnaflow mufflers(still a big name but not as widely spread as flowmasters) also good muffler with the same kinda sound. all im sayin is look around dont get caught up cuz of a name.