Rated #1 by your neighbors.
Used these big block mufflers on a 427inch small block. Very quiet, I can hear the radio and get into the throttle without every cop in the neighborhood hearing me. Had the small block glass packs in before and it sounded like no mufflers. The small block glass packs were tolerable with the stock 350 but the 427 is much louder. If I had to do it again I would probably use the small block reverse flow mufflers, they would probably be a bit louder. I only have a few miles on them so the will probably get louder.
Verified purchase: YesCondition: New