Hio guys have done 3 stage upgrade and bimmerlabs tune already. Have some story on this, sadly i did not dynoed it before started upgrades, but at first i flashed ecu with bimmerlabs files, it felt maybe better response, but not much so i still was going to dyno and it was like 160kw, after that i bought 3stage manifold swap and did some work, deleted all adapts, ran it for few days and went to dyno again and somehow im getting stock power lol.
Car doing stock 7s to 100km/h
No errors, new plugs and etc..
