best spark plugs for tuned 3.5 ecoboost
Standing in my garage, tuning a 3.5 EcoBoost, I found that the right spark plugs make all the difference in high-performance scenarios. After hands-on testing, I noticed that upgraded plugs like Iridium ones deliver a steadier spark, especially under boost and load. That’s when I realized quality components really matter for tuned engines. The problem … Read more