a dry shot is going to make a paperweight alot faster than a wet shot. for the guys considering it, why a dry shot... easier to install? costs?

a dry shot (nitrous gas only), whether its direct port or sprayed before the throttle body, increases the combustion temp considerably. a wet shot (nitrous gas + gasoline) offsets the added oxygen by introducing more fuel into the mix. it was almost counter-intuitive when i first learned about it, but the gasoline actually cools off the combustion temps. it makes car run richer (cool) as opposed to lean (hot). a rich car will at most produce a dirty exhaust pipe, if not done in excess. A lean car will make more power, but you will soon start melting pistons and combustion chambers if youre not careful. bad news.

I would not do a direct port injection; stick to a nozzle inserted right before the throttle body hat creates a og of nitrous gas and gasoline. its alot easier (and more reversible) to drill through your two air intakes than it is to be drilling into the intake manifold plenum.

I would agree you could pull off a high 13 with a 50 shot. i went from a 16.0 second Miata to 14.5 with a 50 shot wet NX kit, and I,H,E.

Theres tons of options on triggering the gas... manual buttons in the car, automatically based on throttle position and RPM, etc. there are also tons of safety switches... low fuel pressure cutoffs, WOT switches, etc. and then theres all the accessories that you can add... bottle heaters, bottle pressure gauges, fuel pressure gauges, a/f meter gauges, etc.

One last thing, and it might be the most important dont call it NOS, NAWS, etc. its nitrous. youre not vin diesel. those movies really gave nitrous a cartoon appearance.