Manifold Conversion Kit - 80" Evolution Big Twin 2003 Stock style breathing system

Stock style breathing system

940" intake valves and 1

Kit is tuned for 10 psi of boost

Hard chromed shaft is 14% larger for increased strength

eases start up and gives a more responsive feel at lower engine RPMs

Manifold Conversion Kit - 80" Evolution Big Twin 2003 Stock style breathing systemManifold Conversion Kit 80" Evolution Big Twin Includes an S&S Performance manifold, mounting flanges, two specially molded O rings and two . 350" spacers for spacing out the stock air cleaner or carb mount bracket Eliminates cracking and leaking problems associated with the stock rubber compliance fittings Kit converts stock 80" Evolution manifold to a more rigid mount system Made in the USA