Had a couple on my Mustangs and did some on some race cars and they sound wesome!!! Help scavenge exhaust out the cylinder. Actually saw a 10hp increasy in a high compression motor once on a dyno over a h-pipe.
I just don't like the idea of dual outlets on my truck.
also recommendations on mufflers. I'm leaning torward a Borla, Dynomax, or Magnaflow.
Did the whole Flowmaster thing on my Mustang and have come to dislike those mufflers. would like something that sounds throaty but not loud under acceleration.