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Those are the best that you can buy for anything under boost. I run them in my Mitsubishi's at pressures upwards of 30psi and my boss even uses them in his 3600hp promod (that's a 700+ ci hemi pushing 65lbs of boost. Car runs a 3.7 in the 1/8th mile @ 212mph). We should all know better by now...

I was thinking the same thing. NGK'S! Those Bosche plugs that every parts store counter clerk pushes on you are the absolute worst plug for anything with boost. Not just Bosche, but cheaper plugs in general. The porcelin will split down the side causing misfires under load. Boost builds heat in...