the s15 auto convert to manual, prolly only the gearbox?
between manual and auto, what is different:
1. smaller 3xx cc injectors vs. 4xx injectors
2. ecu
3. s15 speedo with P,R,N,D on it haha
4. extra switch on the arm console meant for auto
others i cant remember
the 3xx injectors are really lacking, if wanna boost up a bit need minimum 4xx cc injectors to run on the safer side
Cheers!