loosing urge, 7afte Options

[normality78]

guy's,
im having some problem here. Hope u guys can help.

just a brief thru my spec. ori 7afe engine, bolt on turbo. IHI VF10, 2.5" downpipe. 2.5" piping till 2" inlet straight flow exhaust. Control by emanage. Auto gearbox. Boost 0.9bar

from standstill, (gear select manually) from 1st gear -2nd gear, my car does pull hard. Can see the speed climb fast. But once in 3rd gear, the car dun pull hard anymore. The speed wasnt climb that fast also. But boost still maitain though.

on cruising (120-130kmh), D gear selection, if i tekan, the boost reach 0.9bar with ease but the car speed wasnt climb that fast.

What can be wrong? If Gb slip, i would have problem with 1st-2nd gear already. Dynoed 155whp @ 5800rpm and 200nm wtq @ 4500rpm. My suspect could be having low torque.

But the catch is here. It only happen after i dyno tune my car. last time whn i havent tune my car, i dun have this problem. I was told be4 tune im running very lean.

Any input?