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58mm air cleaner

Mean green

Site Supporter
I currently have a 58mm throttle body and HD Heavy Breather elite air cleaner. I'd like to change the look, but I'm having a hard time determining which air cleaners will fit the 58 mm TB. I'm leaning towards a style like the Arlen Ness Method, RSD clarity, or Trask Assault... Does anyone know if those will fit and work well with the 58?
Other forum posts on this topic were a bit dated so I thought I'd try a new query.


Well-Known Member
I have a 55MM HPI and had a precision billet air cleaner on with the stock throttle body. When I built my 117, and put the 55mm on, I just chucked up the backer in the lathe, and machined it out, with a real nice radius for air flow.