Gives you more control over engine, mainly meaning the Euro4 Emission regs which are stuck on the OEM ecu wont affect your throttle position or fuel injection restrictions.
Ktecs Gen128 also offers full VVT control which is a big bonus too.
@ low rpm... after the remap.. "power control" (italian: ALIMENTAZIONE CONTROLLARE) on the display and the ecu recovery, i cant pass 2500rpm.. launch control style