Hi, I'm incredibly excited about taking off the blowmasters from the 66! Not only were they not that loud outside the truck, but created HORRIBLE drone underneath the cab(part of that could have been the turndowns right underneath the cab as well, though.) I am changing them to Dynomax Bullets with the turndowns slanted out instead of straight down. I hope this thing will sound even beastlier!

 

All I can say is WOW! Those bullets reduced the interior drone, so you can actually have a conversation in there, but raised the outside sound by like 2X. Not only that, but I noticed some power that wasn't there before. It just sounds like it's flat out mean: gonna chew you up and eat you kind of mean! I'm loving it.