I definitely felt the difference when I put on Ko2s with Stelies on at the same time. I lost some acceleration for sure but I got used to it. I also get 21mpg average over the 24 I used to get.
That size cap fit very snug and was exactly what I was looking for. I really don't see it going anywhere. It finished off the blacked out looked I wanted!
Does anyone have any idea what caps will fit the BS? I put black steelies on and would like to finish off the center with a black cap. I can't find anything online that says it will fit.