It looks like these are the three "big" boxes(maybe more, inform me if there are). I just bought a 2005, so I'm looking for something new. I love the TST/EZ stack on my 2003, but I had a 2004 325hp truck I used the BDDL on and it worked awesome for towing. Haven't tried the Crazy Larry or Edge Juice or hot juice. The juice just isn't enough power for me for what it costs. But my dealer said the hot juice was advertised at 175hp. So have you guys tried this? Maybe with an ez or bddl stacked? And what about the Crazy Larry bddl? Let me know what you guys have tried. I'll be ptting a Sledpuller 66 on it also(or something in that range). Its a 6 speed truck and I do tow a good bit.