78 /6 4 speed currently has a glasspack on it.
real loud, i have a 2 1/4 exhaust manifold from dartlite going to put on, free some HP.
whats best muffler and should i put resonator, will that be too much back pressure?
Dynomax ultra flo
Only loudish when you get on it.
Similar to glass pack design... but way better sounding! I won't use anything else anymore. Tried most except pypes,thrush,zoom. I'll never use those pos mufflers. Floblaster really sucks.
