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#12: 02-16-2013, 03:22 AM
Title: Contributing V.P.
Location: Milwaukee
Car: 99 Legacy 2.5GT Toyota Supra 2jz/R154
Posts: 1,048
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So your saying I could run a non-resistor plug on my stock ignition system Subaru engine to improve its ignition efficiency? I get why they would be better and I understand that a resistor plug is to help with interference with onboard electronics. But to make that system be 100% effective I would also need a ultra low resistance wire as well. This is from NGK's website. " In fact, using a non-resistor plug in certain applications can actually cause the engine to suffer undesirable side effects such as an erratic idle, high-rpm misfire, engine run-on, power drop off at certain rpm levels and abnormal combustion"