Looks like I might need to buy a new Map sensor and get the Omex recaliberated.

Iv been umming and ahing whether to go for a GT3071 with a .82 hot side or some sort of GT28 for ages. Looking for a reliable 300 on moderate boost and would like to push 400 but with the best response I can get, so if these GTX28s do as the comp map says I think I havefound my perfect turbo. For a C20LET may I add.