Currently there are over 100K miles on the original stock plugs and injectors. I am wondering if there is a strong argument for either leaving them in or replacing them. New plugs are cheap; new injectors not so much. Once I'm in there I will do both at the same time.
Is it worth the preventative maintenance to do them now or should I just leave well enough alone?
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2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed | |