Yep, what he ^ said. Would need several hundred amps to hear a radio in my 68 with 3" Borla mufflers. The 67 is lot more quite with 2.5 in/2.25 out, but still rather listen to the car vs radio.
Agreed. Besides the Doug's Headers, I have a Pypes 2.5 system with chrome splitters in the rear quarters and Violator mufflers. I bought the mufflers specifically because the Pypes webpage said, "For those of you who want to be heard."
2012 Mustang Boss 302 #1918, Competition Orange. FGF replacement 2006 Mustang V6 Pony, Vista Blue. Factory ordered. 2019 BMW X3 (Titled to the wife, but I'm always driving it for her. So I'm claiming it) Old projects, gone but not forgotten: 1967 FB 400, original CA car. After 22 years of work, trashed by the guy who was supposed to paint it. I had to sell it. 1980 Turbo Trans Am 1970 Mustang fastback, 351C 4Bbl, auto 1988 Mustang GT, 5 speed 1983 F-150 4x4, built 302 1994 Chevy K2500 HD 4x4, 454 TBI