bro ...have u tried yoshimura stain magic...it cleans my headers and mid pipe pretty wellhi all , has anybody got a good cleaning tip for the akrapovic downpipes , I've got some tar like deposits that are really hard to remove , tried wd 40 but the spots won't budge . cheers everyone
It's brilliant. I was tipped off about this a year or two ago and have used nothing else since.I’ve seen ‘Harpic Power Plus Max 10’ recommended by several people on bike forums. Never tried it myself so cannot confirm if its any good, but is cheap so maybe worth a go. (Though maybe try a small inconspicuous area first!)
Search on YouTube & there’s plenty of vids on there of people using it to clean downpipes.