go with flowmaster 40 series and put a turn down on it right after the muffler. Youll have on bad *** sounding truck!

 

talk to ur exhaust guy. tell him what u want. listen to him. he hears more pipes on more trucks than anyone. my installer sells both magaflow and flowmaster. listened to what i had to say and he suggested flowmaster 50 suv and 3" tips and he was right.