its an 06------you are lean.
You are probably good as long as you haven't used a Stage 1 A/C also. Shark Fin (fish tails) are usually restrictive anyway.1potter1 said:06 Ultra with sharkfin exhaust off a 2000 SE Roadglide. I put these on for alittle more noise. I'm not getting any popping on decel. Does this mean I'm not running to lean. What signs should I be looking for on the plugs for lean condition. thanks