just wondering... is the stage 2 & 3 map sensor and TIP sensor required if you are running boost at or over 16 psi? i didnt go with the stage kits, i went with the bolt on plan, 3" turbo back exhaust, cold air intake, stage 1 pcm, stage 2 injectors, greddy boost
controller...

thanks..

 

No its not. A map clamp might help you though if you plan on hiding the boost from the PCM. But its not required.

 

IMO id rather get the map n tip sensor but u can get a map clamp either 1 is ok.

 

You don't want to swap to the S2/3 MAP & TIP unless you have some way to tune the fuel (a "piggy back" fuel computer).

The S2/3 MAP & TIP are too far off to just plug them in to the stock or S1 ECU; you'll run lean.