ranger said:Nope,
Sparkplugs.com only carries the hotter UR5-1x NGK irridiums, not the UR6-1x, apparently.
Why is this such a rare, un-heard-of plug?
Craig Stangohr
Aiken, SC
gjp said:I am a pro at installing plugs. I think I hold the reccord.(long story)LOL
Stock I had good luck with NGK ur5's or 6's. Gapped to .032. With alky I drooped to .025.
6's had less knock but would foul faster.