Installed on my 2005 Harley Heritage it’s only been a couple of months, bike is running great
Provided more HP to my 2015 Road King I highly recommend these plugs!!!!!
I ride a Harley Ultra and they do make a difference.
big improvement in performance and fuel consumption
Bike starts right up and runs great.
Feature Product
- The ultimate in spark plug technology and performance
- Iridium electrode is smaller than a standard electrode; requires less voltage
- Hotter spark and extended spark plug service life compared to conventional plugs
- Has the distinctive black ceramic with and gold-colored corrosion-protected coating on the metal shell
- Sold in pairs and replaces Harley# 6R12 / NGK# DCPR7EIX
Description
(2) Spark plugs Resister type
5/8" Hex
11/16" Thread reach / 12mm Thread diameter
Projecting insulator type / Removable terminal nut
What a HUGE difference with these and the Accel wires. Definitely notice the difference in power!
Outstanding plug makes my bike start easyer and run like a champ!
Good
Do you gap them to the same specs as a regular plug?
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