spark plugs and oil before dyno tune
so im gettin uprev tune saturday i have motordyne e370, berk hfc, and stillen gen 3 with 25 row oil cooler. is it 100% NECESSARY ABSOLUTE MUST to change spark plugs before a tune....and what about oil..some ppl on the threads say its fine some say change it. i have 1200 miles til next oil change...so i really need one
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