I could instantly notice the difference in acceleration and improved gas mileage on the freeway since I travel constantly

Trust me, you will definitely so a difference in the performance of your vehicle

This plug works really well, notice the difference in my gas mileage already

wow what a difference it’s like a new vehicle

had it in 16 months and felt no difference but worst of all is the spark plug failed and collapse were the “gapping” should be set and cause a major misfire

I just installed these in my 2006 Honda Civic and OH MY GOSH, the difference is amazing

Immediate difference in my 2000 4Runner, bought expensive single plugs and these absolutely blew them away.

Well after 40,000 Miles, one of the plugs fouled out, (not sure which one or if it was more than one plug that failed), the car just started to sputter as I hit the gas on the Interstate the other day