Hi all,

Car is a Hawkeye JDM STI 2.0l, any tips or tricks and things to look out for when changing plugs.

I have ordered the NGK PFR7B plugs, does anyone know what the correct gap is for the 2006 Hawkeye JDM wrx sti (2.0L engine , NOT 2.5L)

Cheers

 

They come pre gapped, and it's easier to do them from underneath the car, bloody fiddly, have fun

 

Remove the air box, remove windscreen washer bottle. Remove the battery if it's the first time you've done it - next time you'll find you can do it without removing the battery.

Remove coil packs - one bolt per.

Main "trick" is to find the right combination of short extensions and ratchet handle to get in there. I find my Halfrauds 3/8" drive set with a short extension fits easily.

Takes about 15 minutes once you get used to it

 

hi i would say 0.65-0.7mm gap normally but i would recheck the gap on them to be sure. if youre running much higher boost 1.5 bar+ i would gap them to 0.6mm.

 

That might be why im getting a slight miss at 4k when the boost is at 1.61 bar, this only happens on WOT

 

Plugs done today, seems to have sorted the miss out fine.

As said Airfeed off, airbox out, very easy on that side.

Pass side, my washer bottle is down near the headlight so that stayed in situ, managed the rear plug with minimal swearing and a combi of different sockets etc and the front plug unless working from below or having magic sockets the battery had to come out, gave me much more room to work.

all in all very easy if a little tight

all my new plugs were checked and they all came gapped at 0.7mm,

was quite interesting when i tried ordering the plugs from KAP Subaru in Folkestone, Kent, the parts guy had never heard of an Impreza STI before............. needless to say i phoned powerstation at 4pm and they had them on my doorstep for the following morning

Job done, cheers all

 

You must of had one of the Kap numptys lol

Kap are no longer scooby dealers they source all there stuff thro another dealer. There not really intrested in them anymore didn't sell enough