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.
want to fit in a Metal Gasket Thickness for my 63t
what material is available and what should i use
i am not going to boost that high in the future maybe 1.2bar
what are the side effects of too thick gasket