With all Wimmer support brackets and breathing systems you now have 2 options.#1 the original patented TOP breathers. Yeah, the little hanging piston looking things. Yes WE invented these and have been copied a lot , but the original is still the best. These canisters have cotton filters inside to absorb oil mist from crank case venting. Yes they do require cleaning from time to time. Very easy to remove and clean.
#2 our totally new sculptured bracket with internal ports to vent crankcase pressure. Oil mist goes directly into the carb or injector. Fewer parts and less expensive.
Either way you get top quality in all CNC billet works of art.