I have been looking around for a new turbo and I am really intested in the htb2. I like how you can upgrade compressor and housing as you grow. I am just not what one would be best for me. My truck will not have the same set-up as it does now, looking at some Mach 3 or 4's, and I will have my new TC and VB in by this time. Does anyone have any input on the htb2 (street stock), killer b-2, or the sled puller 66?