I got a set of supercomps I almost installed on my Duster.......... Almost as in, had them halfway there..........
Before I realizzed that they would drag the ground
Still have em.
I don't know now, but JC Whitney used to sell the 12" "racing" glaspacks............
They sound great, and a 12" glasspack doesn't resonate back at the motor like the longer ones.....
I love the sound the a new glass pack.