You can already guess where this is going. Right now my truck has stock exhaust until after the cat where the P.O. put a glasspack going out through a y to two 3.5 inch tips. I want to get rid of the glasspack and maybe punch out the cat, and am trying to decide between Flowmaster 50s, Cherrybomb Pro, Elite, or Vortex. Anyone got some suggestions because I'm at the point of pulling out hair trying to decide.