For my 2012 GLi, just thinking of putting IK16 and getting them for about Rs6000 from London. Is this the right spec?
14mm Thread Size
19mm (3/4") Reach
16mm (5/8") Hex Size
Gasket Seat
Resistor
Removable Terminal Nut
ISO height
0.4mm Iridium Center Electrode
Tapered Cut, U-groove Ground Electrode
1.1mm (0.043") Gap
Heat Range 16
I know a lot of people here are recommending IK20 but denso website itself recommends IK16 for 2NZ-FE. I have read about the heat range and it seems that my driving style will not require excessive heat dissipation as I rarely drive at high revs. Also putting IK20, the spark plugs will find it harder to clear deposits potentially reducing the life span?