i was talking to a guy who sells NOS kits and he said it's not necessary to run the ECU upgrade?

 

If you run larger than X shot of NOS, you'll need some sort of computer to:

A.) Increase fuel pressure using an adjustable FPR
B.) Switch to NOS mode and flow more fuel

In either case, you'll also want a higher flow fuel pump.

I don't know what X shot is, so you need to find that out.

 

Running anything from a 50-75 shot works fine on a stock setup. Anything higer than that is risky. You'll need a lot more than just a fuel pumo an ecu to do that. You need to beef up the internals and everthing. Were talkin mad $$$ to run anything over a 75 shot safely and effectively. I can run my 75 shot all day long with no problems at all. In the future I'm gonna get a high flow fuel pump to be safe but thats not at all neccesary.