recommendations for
 

A replacement free flow QUIET muffler and a possible intake system for an F450 cutaway RV. Am running the 5 star tuner and think it also needs these 2 things to help it along. Gibson has a universal fit that will require mods to use as I guess it is shorter than the stock muffler.

As to the intake the van has a small inlet over the radiator would like to find something that will work better.

Thanks Hank

Banks should have something for ya. Not a huge fan of the man himself, but the products seem to back up the hype.