-- the little side intake and in cowl muffler are are a real bargain---IF a lot of noise is no problem.
Everyone has their own idea as to what is a good setup but the Evolution and pipe is not in the same class as the Birelli or other similar setups
also --on the 125 Sport JR's --they really don't work at their best with " Y reversers" etc..or bargain basement wiring /Receivers etc..
forwarned is forarmed--