On my 08 DS450 with an FMF Tuner HMF slip on, what spark plug should I be using?
rickwhoo · Registered Joined Jan 24, 2021 · 11 Posts Discussion Starter · #1 · Mar 23, 2022 Only show this user On my 08 DS450 with an FMF Tuner HMF slip on, what spark plug should I be using?
Seagull · Registered Joined Oct 31, 2021 · 2 Posts #2 · Mar 24, 2022 Only show this user NGK DCPR9E or Iridium Dcpr9eix. I personally am using the iridium ones
