maf and throttle body diameter

[Gelbster]

For comparison and pricing purposes ,here is Pedro's Kit:
TechnoPower2 Kit - Increase HP output by 30 horses
He has an option w or w/o the FVD re-map of the ECU. That gives you an ida of how to budget any alternative remap from another source like ? ECU Doctors.
To get the full benefit of the mod ,there is the additional cost of also improving the exhaust system to eliminate some restrictiveness.