As long as IK/KH/Q/W/T16/20L (Original 1.1mm) once is gapped to 0.8mm => more power and performance can be expected (immediate effect after installed).
Measurement of plug gapping to 0.8mm will be shown to buyer during order collection.
Since dyno tuning damn expensive and everytime when you upgrade your car (bigger turbo, bigger injectors etc etc) you have to re-dyno, is there anyone who's interested in getting a wide band tuner? Would like to find...