I think John at floor-it taught wicked and exergy how to build pumps. I know that he talks to Shane quite often and used to build exergy's pumps. John is the pioneer of the his field and has patented technology that no other modified pump builder can touch. I'd say floor-it stg III for the win. I've had my pump on for 30K miles with no problems (stock injectors), not saying it won't fail tomorrow but all companies have their problems. The biggest problem with floor-it is CUSTOMER SERVICE!!!!!!! Christ almighty that guy is hard to get a hold of, but everyone wants what he has and he builds every pump himself, along with dyno's, and working on trucks. I've been there 3 times along with numerous calls and emails to get back on they dyno and so far no luck. I like John and think his pumps are the shit, but in all honesty exergy or wicked would be a more customer friendly company to deal with, although their pump may or may not be as good.