Wanting to give your bike a 60’s hot rod look? Just use the parts that hot rodders were using at that time or the ones specifically adapted for motorcycle use. Like this “Lake Pipe” exhaust cap with weld-on flange kit created by Rudy Chapelle, a builder working on both cars and bikes, for use on 1 1/4″ pipes.
Kit includes 2 weld-on flanges and 2 louvered polished billet caps and necessary hardware. For sale through your preferred Dealer via Custom Chrome.
that should make your air pump breathe much better.
good luck.
Good idea……..