I heard you people using the NGK BKR7E-11 spark plugs gapped at .040. Is it necessary to get new plugs for a 75 shot? Will it help that much? I have a 98 GS w/ AT

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Probably not a bad idea at the track but a bad idea for daily driving due to fouling from inadequate heat cycling. I've ran 6 range plugs with a 70hp shot, then with 10lbs of boost both with 10.5 compression. I really, really doubt you need 7 range plugs for a 75 shot (I know for sure you dont but dont feel like arguing with anybody). If I can run 10lbs of boost on 6 range with 10.5 compression and a shitty starion intercooler you can run a 75hp shot of nitrous which cools the intake charge 65deg (unlike a hot turbo which even air to air intercooled wont reach ambient).

:farfrommugen:
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Damn right I've been here longer than U
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i use denso iridiums, i would recommend putting in new plugs when u get nos if the old ones are fouled, you just get shitty response and u feel like u wasted your money, that just my 2 cents