CHEESYPOOFS
Well-Known Member
- Joined
- May 19, 2008
- Messages
- 812
- Reaction score
- 0
- City, State
- Mooresville NC
- Year, Model & Trim Level
- 98 XLT 5.0 2wd
Ok so i bought some E3 Diamondfire Spark Plugs for Big Red (my Explorer obviously lol) they say to save gas mileage improve performance and increase the general life of the engine. they also have a 5 year 100,000 mile warranty. Sounds pretty good to me but then so do many other failed things so i need opinions does anyone else use these? how good r they, do they make a big difference, and r they worth the 7 dollars a piece price tag?