DNTPUNCHGRANDPA I installed a HOOKER 1 in 2 out muffler on my 1970. The sound is deep and throaty and nothing even close to that spurned rice rocket sound. Any good muffler shop can install it without the unsightly under hang. No need to bother the heat shield either. I was able to create an agressive DTM look from behind with 45 degree exhaust tips. A 2 1/2" exhaust fits nicely into it. It sounds really nice at speed as well, not deafening at all. CICLISMO