When I bought my last system I decided to call every nitrous company and talk to them about thier products and the most knowledgable and helpful company was without a doubt Nitrous Express. I have had 3 different NOS systems on different cars and thier tech support has always been lacking in my opinion. I had the NOS Turbo Buick system and when I ordered new jets they sent me the wrong ones 3 times in a row! When I called for tech support on my NX system I almost never had any hold time, but with my NOS systems I always had at least 15 mins or more. I bought a NX system for a carb Trans Am that I had, and when I got the system the nitrous plate ended up being too thick for my application which caused hood clearance problems. I called Mike Wood who is the owner of NX(and a heck of a nice guy) to ask him what my options were and he told me to send the plate back and he would custom make me a thinner plate setup for only the price of shipping. Needless to say I was very happy and I thought that was above and beyond the call of duty on thier part! I would encourage you to call around and talk to them like I did, and when you call NX ask for Mike Wood, he'll make a beleiver out of you!!! HTH Steve