Not sure which 1999 Land Rover Range Rover Spark Plugs are right for you? We have over 146 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"This is a great mod! A no-brainer for the $. Good conventional plgs cost about the same! My 99 Range Rover 4.6 is getting 25-30% more miles per tank. 3/4+ mpg. That is considerable and will pay for itself by my 3rd refill. BTW, they're rated for 100,000+ miles. I usually have to change plgs every 15-20k in this harsh New Eng CT climate.
Dont forget to discount ur battery n use boot deelectro grease to insulate xtra spark into capacitor. -j" —James C from Bridgeport, CT bought a Pulstar Eco-MPG Series Spark Plugs for a 1999 Land Rover Range Rover, 4.6L V8.