Ratings & Reviews for E3 Spark Plugs 5/8-in 2-cycle engine and 4-cycle engine Spark plug Fits Champion, Briggs Stratton, NGK, Torch

What Customers Are Saying

Customers overwhelmingly praise these spark plugs for dramatically improving engine starting and performance across lawn equipment and small engines. Most report engines start on the first pull, even after struggling with previous plugs, with many noting immediate improvements in cold starts and throttle response. Reviewers consistently report enhanced engine power and reduced fuel consumption, with many becoming loyal repeat buyers who use them exclusively in mowers, snowblowers, chainsaws, and generators. A few express minor skepticism about performance claims or mention isolated fit issues, but overall customers consider them a reliable, worthwhile upgrade.