Cast Intake Manifold M8 55mm Fits for Harley-Davidson Road Glide Electra Glide 2017-2022 27300121 44987358OEM Part Number 27300121, 27300122 Fit For the Following Models Cast Aluminum Intake Manifold with 57mm air intake for 55mm stock manifold. Fit Harley Davidson M8 Engine 2018 later Softail, and 2017 later Touring Models. Fits '18 later Softail, and '17 later Touring models with 55mm intake monifold M8 EngineBreakoutBreakout FXBR 107 2018 2019Breakout FXBRS 114 2018 2022Breakout 115th Anniversary FXBRS 114 2018Fat BobFat Bob FXFB 107 2018 2020Fat Bob