Which Spark Plugs
Hi just wondering which spark plugs people are using on there 2.5 STIs.
Having been in an evo 8 fq400 for the last few years running over 500bhp. The only plugs that would run ok were the cheap copper core plugs.
Iridium plugs would just misfire on boost.
I would have to be change the plugs ever 6 months though which was not a problem as they were so cheap.
I have a hatch 2.5 STI running around 420bhp so need to know which plug would be best and the heat range
Having been in an evo 8 fq400 for the last few years running over 500bhp. The only plugs that would run ok were the cheap copper core plugs.
Iridium plugs would just misfire on boost.
I would have to be change the plugs ever 6 months though which was not a problem as they were so cheap.
I have a hatch 2.5 STI running around 420bhp so need to know which plug would be best and the heat range
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