S&amp,S Cycle Intake Manifold for Super E Carburetor 160-1718 These manifolds have provisions for mounting the stock MAP sensor directly to the manifold and are primarily designed for Harley-Davidson Twin Cam 88 engines Manifolds may also be used on engines for 84-99 Big Twins which require a MAP sensor, such as S&amp;S engines equipped with the S&amp;S Intelligent Spark Technology (IST) ignition Available in 1-7/8 and 2-1/16 Size 5.550 Evolution4.937 Twin Cam 88 Cnlinder Length 410 Evolution /Twin Cam 88