S&amp,S Cycle Chrome Tuned Induction System 106-4967 The heart of this induction system is the dual runner, 2-into-1 intake Instead of bolting directly to a dual bore throttle body, the runners of the single bore induction join together in a smooth, flow enhancing curve Air filter area almost 2 times that of an S&S teardrop air cleaner The intake is available in chrome, wrinkle black powder-coated or natural finish A number of adapter brackets are available to bolt the tuned induction runner to a number of fuel systems on a variety of engine types