Originally posted by baxsom
zex uses a throttle switch NX uses a throttle switch thats the two main ones besides NOS and you never really hear that much about them much on here. at least with a switch on the throttle wether it is mechanical or electrical you can keep both hands on the wheel

Those are supplied because of inexperienced people using nitrous. ZEX is a perfect example of the idiot proof nitrous attmept.