hehehe.. as Pangyau suggested..
i did go retune my car with reflash in sunway GT auto last week..
previous owner set 1.1 bar low boost can only last 140km full tank ron97.. dynoed result is 226 with dynojet.. (with unknown flash setting.. and a power afc)
high boost 1.2 bar dyno result is 229.. lol..
now tuner done with my car.. low boost he set stock which is 0.8 for my e7.5.. dyno result is 233.. XD better than b4..
and about high boost setting which i most happy with it

1.0 bar..... dyno result 266..

(btw i ask for better mileage and worry my gearbox... so he just set 1.0 bar at high boost for me only.. )
now full tank ron97 can reach 200-300km (depends my foot)..
yay!! so damn better.. :D
and safc is edi disassembled for selling.. tuner said i dont need it.
btw.. he replaced my stock pump to walbro fuel pump ..