UncleRon dont feel bad , I spent 3x that amount in 1 week. I was convinced that the more expensive plug would run better.
On my bike I saw no diffence between the expensive (BOSCH PLATINUM +4 #4479 or 4478) and HD plugs.
Its only the cheaper HD plugs for me and I can replace them with a fresh set every year if I so choose.
On my bike I saw no diffence between the expensive (BOSCH PLATINUM +4 #4479 or 4478) and HD plugs.
Its only the cheaper HD plugs for me and I can replace them with a fresh set every year if I so choose.
