ok on my 4th cummins and need some info
 

recently i found my 01 3500 quad cab an old man had parked in garage with 6 flat tires so i bought the truck started upgrading parts now i have found a MONSTER RAM-AIR HEATER DELETE what is going to be the upside to installing this onto my truck i have already went with a twin turbo kit 100hp injectors cold air intake bd tranny and straight piped from turbo back! that raises another question as well anyone put on a muffler thats got a better sound than the fart can straight pipe set up ive grown tired of all the trucks around me sounding the same dont get me wrong i love the throaty sound but would like to find something to give it a little more of a deeper growl!!!!!!!!!!