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 with S&S Super E carburetors. These manifolds may also be used on engines for 1984-' 99 big twins which require a MAP sensor, such as S&S engines equipped with the S&S Intelligent Spark Technology (IST) ignition. Fits 88", 95", and 106" Twin Cam 88® engines with 4.937' cylinders and 80", 89", and 96" Evolution® big twins with 5.550" cylinders.
