davemar

I'm planning on changing my spark plugs on my standard 2005 WRX Blobeye (EJ20), and get the impression that NGK PFR6G are the ones to go for. However, they come in a variety of suffixes: -9, -11 and -13, which appears to be the gap size. It is true that the engine prefers a 0.7mm gap size? So does this mean getting the PFR6G-9 version and gapping it down from 0.9mm to 0.7mm?

Seems strange there isn't a standard plug with the correct size already set, or am I missing something?

stockcar

PFR6 B pre-gapped to 0.8mm albeit we normally close them slightly..........

if you have a de-cat or modded then normally supply PFR7B and gap them around 0.7mm

jaygsi

iTrader: (46)

Have a set if you need some bought about 3 sets not even used one yet lol