I'm looking at going to a twin turbo set up and am wondering what secondary turbo I can use w/my modified stock turbo ( it is a Gale banks 14 cm exhaust housing that came w/ the stinger plus twin ram kit ) instead of buying TWO new turbos). I'm thinking of going w/ HT3B twin kit from Diesel Power Source ( D-Tech 62 over HT3B turbo) or, would I be better off w/ their S475 Turbo Kit, I'm looking for around 500 Hp. for towing without too much overkill while maintaining some reliability. I also have ATS5B injectors in it now ( whatever those are, no info on specs ) and would like to know which injector would be best w/ this set-up and what pump mods, if any, to use. Any suggestion will be Highly appreciated, Thanx- Rick