i think i am going to get the zex kit for my 97 gs, i had been wanting to get the nos kit, but i went into a local shop today and saw zex for the first time in person, i hadnt really ever researched it because i hadnt been planning on ever having nitrous. that kit looks like it is REALLY simple and easy to install... but it is $50 or so more expensive.. i would be running the 75 shot, but then jump up to 100 when i do some fuel and ignition mods. so what would you guys reccomend and what are your experiences with the two kits.