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What this means is that it will extend the life of the fifth gear bearing and lighter weight means more horsepower transfer to the rear wheel
routing hot exhaust gases below the footpeg and protecting vital engine components and side covers from heat damage
Simple 2 wire installation with 18″ wire leads for easy wire tap-in to run power and ground
more protective overshirt designed for every mile you put on the bike
0:1 Compression Ratio with 85cc Head Chamber Volume
Top End Gasket Kit with 0.030in. Multi-Layer Steel MLS Head Gaskets. Fits Touring 2017-2024 & Softail 2018-2024 with 107 to 124 or 114 to 128 4.250in. Big Bore Kit. Z309-322 What this means is thatFitment: * Used for 107ci > 124ci upgrade or 114ci > 128ci upgrade * 4. 250" Bore * MLS 0. 030" thick Head Gaskets (thinner than OEM) * Provides an additional increase in compression. ** Remember to check your clearances. Tech Tips: * Use of these head gaskets without proper clearance checks can lead to catastrophic engine failure * Does not fit CVO Touring Models 2023up or Street Glide & Road Glide 2024up