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.
hi guyz.. jz wanna ask for ur opinions.. erm.. wuts da meters for? i c some cars they have all those meters..like dem ganas like dat.... im driving a stock wira with air filter, downpipe n stuff... can i install the...