I have the kit with dual fuelers and love it. Haven't done any towing yet but spool is great. Absolutely zero smoke on the top end and under boost there's not even a haze. with TSD tunes I'd say I'm north of 700HP. I ran 12.2 @ 110mph with a cut in one of my boots... oh and my truck is a CCSB.
My '14 has 30k miles on it and has had twin pumps since it had 2k miles... I beat the dog**** out of my truck.... stock turbo twin pumps made 541HP, then threw an Industrial "Add a Turbo" kit on it (which I may add was a death sentence according to 90% of people out there) drove it and towed @...