I was having my carb tuned and decided to record the exhaust note of my 65 Mustang. It has a 430HP Roller 302 with long tube headers, 2.5" H-Pipe and 2.5" Mandrel bent tailpipes. These 3 chamber Flows are about 15 years old. I replaced them with Hooker Aerochambers so check out the other video to compare. I'll make a driving video soon now that I have a GoPro.