which direction do i go? pros and cons?

 

ITS NITROUS OXIDE!! Quit calling it NOS you sum bitch! Check out the stickies at the top of the page lol.

 

to intelligently answer your question ...

I'd go supercharger. No refills, no worries. And not as bad longterm damage to your engine.

End result: You'll be alot happier.

NOS is VERY overrated. IMO (and I know people will bitch about that comment reguardless.)