Cometic, cylinder head gasket set. 4-1/8" .040" MLS - 99-17 Twin Cam (excl. 14-16 Twin Cooled) with 4-1/8" big bore cylinders (NU) 513105 Tests have shown a 26%

Tests have shown a 26% power increase on 883 models

Front or rear

Comfy Cotton Blend

001" wider piston to wall clearance

Cometic, cylinder head gasket set. 4-1/8" .040" MLS - 99-17 Twin Cam (excl. 14-16 Twin Cooled) with 4-1/8" big bore cylinders (NU) 513105 Tests have shown a 26%. 040" thick MLS (Multi Layer Steel). Consists of a top and bottom layer of embossed stainless steel with both side coated with 250C high temperature polymer rubber layer. The inner ring(s) are also stainless steel. The gasket layers are rivited together, outside the gasket surface, for ease of installation. The outer layers are embossed and both sides coated with a 250C resitant polymer rubber layer. MLS head gaskets eliminate the use of dowel pin o