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.
Just wanna open this discussion abotu who is the best mechanic for RE cars in town.... So all RX7 owner hv better idea where and which mechanic to go for when the car is sick. Is better to go for those professional...