k the map sensor plugs into the ecu right, right by the port for the commander now i dunno bout u, but my plug for there is only a 3 pin plug and the ecu has 5 pins so where do i put the thingie, also would it jus b easier to plug it into the stock plug and forget the harness that apexi gives u altogether, and if u do taht, do u still chose option 1 or do u keep it as normal