i love my 22 hooker on my rcsb. I have a mild 6.0, lts, no cats, 3 inch dual pipes merging into 3.5 pipe, opened up the 3 inlet and outlet on the hooker 22, have a 3.5 pipe from a diesel truck going over the axle and dumped...pretty quiet. I recently put a 4 inch resonator tip and it got a lil louder. Sounds muscular, no drone, no rasp, smooth upon acceleration. Best sound i have had. Hope this helps and you enjoy. Oh and you got a an extended cab so longer pipe may make it even quieter. Rob (956) 802-7700.

 

Also, make sure your tip isn't too close to the body on your truck. Mine droned like hell too until I bent one of the exhaust hangars to move the tip about 4 inches from the body. No more drone. It's the flimsy metal on the truck box transmits the sounds a lot easier than older trucks.