for the last time NOS is a company everytime i hear ppl say that i want to beat them with a 5lb bottle, have u ever thought of gettin stronger internals and use FI and NO2, they work good together, i would get the stuff from zex cuz i know a lot of ppl with zex kits and they are very happy, also spend the extra and get a direct port wet and up the fuel being pumped in so everthing stays balanced and your itr motor happy good luck on your run when your done post the slip