First of all Banks does not
make a kit for the CAT engine. You may want to have CAT reflash your computer for updates and check to see if your intercooler connections are all tight.
Secondly, TS performance makes a programmer for your CAT engine. I have been happy with it so far along with the Aero Muffler I installed. You still need to monitor your temps and not turn it up all the way. www.brazilsrv.com
has some info on this product and they can answer your questions.
05 Tiffin Phaeton 40 QDH Cat 350+ ScanGuage D
MP-8, Aero Muffler, AFE Filter, Koni FSD, MCU's, Reflex SS, Ready Brake Elite, HHR LT Toad