best spark plug 88 mustang gt
Before testing this NGK Iridium IX Spark Plug LTR6IX-11 for FORD MUSTANG GT, I never realized how uneven spark performance was holding back my engine’s power. After installing it, I noticed smoother acceleration and improved idle stability—especially at high RPMs. Its fine wire Iridium center electrode delivers a consistently stable spark, even under demanding conditions, … Read more