excellent performance gains

excellent performance gains

I am certain it was some, as well as overall improved performances and elimination of some hesitation when accelerating.

Good performance at first, and then a big letdown.

Meets all specifications provided by the manufacturer and its performance is superior

The first motor I installed these plugs in was a 1992 Magnum V-8 that was originally a 5.2 liter 318 CID that was bored and stroked out to 410 CID which is 6.7 liters with an MSD 6AL Ignition Box, Accel Distributor, MSD coil, Taylor Wires, Python fuel injectors, Flow Tech Headers, Crane Cam, Edelbrock Heads, Mopar High Performance Intake, Mopar Performance ECU and many other performance producing and enhancing products

Better fuel economy AND better performance.........

Again, these are not worth the extra money when you could see much better performance with other options.

Great performance and gas saving will buy ahain