S&S, Premium M8 55mm CNC ported black manifold, Matte
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Description
Fits as a direct replacement upgrade for the standard 55mm manifold. It is a better, stronger and a more heat resistant replacement for the stock plastic (polymer) manifold. Made of T6 heat treated cast aluminum that is CNC machined on outside, but also CNC machined / ported on inside, for the ultimate in high-flow characteristics. Adds 3 to 5 horsepower and up. Especially above 124" the stock manifold becomes a restrictive part.
Complete with a rubber O-ring seal.
Easy to install, re-using all stock parts.
OEM replacement reference 27300121.
Note: For replacement O-ring seal see 974061.
