Thread: best spark plugs for 480 hp t4 2.2 bar coilpack ?
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Old May 25, 2008 | 12:37 PM
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Chip
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Ik31's get my vote too, 071 are good for a trackday car where you want to chuck a new set in every outing "just because" if you are of that mindset, but the IK31's just last SO much longer.
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