Review on NGK 6046 DCPR7EIX IX Iridium Spark Plug - Compatible with 2017 Harley-Davidson Dyna Fat Bob - FXDF by Zac Pewitt

Install these spark plugs and you'll feel an instant increase in power as soon as you release the clutch and the engine springs to life in all gears. You also save on gas. I get a 2mpg increase in fuel economy with these plugs, and those savings quickly add up. I have them in my Triumph and in my Harley-Davidson. do they hold? Yes, I drove them 20,000 miles and they looked like new, put them back on and drove another 20,000 miles. They never failed, tripped, overheated, etc. This is a really good product. The exhaust sound sounds more explosive when using these spark plugs. Come, try them and see for yourself. Power, economy and sound. What else would you like? JamesRussellPublishing.com