Hey man, I was running a 75 wet shot on my AP1 S2000 for a few months, all I did was run 2 stage colder plugs and unleaded race gas. It was an ohk difference, I'm pretty sure it could've ran a high 12 with good tires, good driver and a awesome launch. I ran a few STI's on the kit, I won everytime, and I walked the piss out of one of them. He claimed he was making 400hp lol but he didnt stop talking after he lost, he said "just because you were in front of me, doesnt mean you won" haha. Go FI, full race and inline pro have some impressive kits on the market and you can never go wrong with FI. S2000's respond awesome to turbo kits. Hope this info helps a little bit.

 

Gears Nitrous IMO
I have noticed a lot of people got with nitrous because it is easy on the wallet. Just like a few others have said, if you do it, do it right.

 

Nitrous if done right wont grenade your motor, but the wear and tear will be excellerated on items such as seals, retainers and rings may be affected too. Pretty much the same side effects of FI motors.

I have used Nitrous in the past and I just dont like having to re-fill the bottle all the time . After a while I was thinking with all the money I have spent on refills I could have went turbo or SC