just got soem NGK plugs today going to change them tonight what shoudl the gap be for a 2003 WRX 2.0Turbo.

Also is there a guide out there?

Andy

If your car's relatively standard, the plugs will be PFR6b or 6g and the gap 0.8mm This is a useful site Spark plugs UK - Champion, Denso, NGK spark plugs and Magnecor leads (http://www.spark-plugs.co.uk/index.htm)
JohnD

did them today i found a sticker on the bonet.

Still hasnt solved the problem tho