I've had nos on my NA for about 4 years now, I'm running 2 kits with a 100shot on my main one. I've had no problems with the engine or drive train. The refilling the bottle does get a bit annoying, as a 12lb bottle don't last long on a 100shot. Also having to wait 15min for it to warm up to get full pressure is a bit of a pain if you want to use it sooner.
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I've had nos on my NA for about 4 years now, I'm running 2 kits with a 100shot on my main one. I've had no problems with the engine or drive train. The refilling the bottle does get a bit annoying, as a 12lb bottle don't last long on a 100shot. Also having to wait 15min for it to warm up to get full pressure is a bit of a pain if you want to use it sooner.