Hmmm. Kinda disagree. I spent $550 on a Zex nitrous dry kit and went from a 14.4 at 94mph to a 13.1 at 106 mph. (125HP shot) For me it was worth it cuz I was stomping new, albeit traction limited corvettes and camaros and I am still running stock HCI. I don't think I could have got there with...