factory spark plugs. you are doing great work Changed at 100,000km. The old ones looked really good. The electrodes did not appear optically eroded; However, I did experience rough revs, especially with the A/C on and off. After replacing the spark plugs, the jerking went away - although of course the power resistance of the compressor remained.
Upgrade Your Mazda MX-5 Miata With CravenSpeed'S USA-Made Door Bushings
39 Review
Replace Car Bumper Clips: GOOACC 100Pcs For Nissan, Mazda And Infiniti, Including Fastener Remover
33 Review
25Pcs Fender Liner Screws For Toyota Avalon Camry Corolla Scion Lexus - OEM #90159-60498
35 Review
Off-Road Fender Flares For Jeep Wrangler 2007-2018 JK & JKU Unlimited - Heavy Duty Flat Textured Steel Mud Guards In Black (Set Of 4) By Hikotor For Front And Rear Replacement (2 Or 4 Door Options)
47 Review