FORGED PISTONS EVO 80CI 9.5:1 .020 Category_Default Category/SLED/Yamaha/Mountain Max '20+ Unlike some shields

Unlike some shields

performance exhaust systems for Matryx Boost

Specially-formulated high temperature Neoprene® with the highest level of aramid fiber loading available delivers track-churning performance for the most aggressive riders

(silicone is recommended for installation

1” diameter

FORGED PISTONS EVO 80CI 9.5:1 .020 Category_Default Category/SLED/Yamaha/Mountain Max '20+ Unlike some shieldsKB forged pistons are made from 4032 forged alloy with an 11% silicon content, formed in a forging press and then fully machined. Due to the material and manufacturing process these pistons have superior crack resistance under detonation or pre ignition. They are suited for Street or Race applications with power adders such as NOS or boost. All Twin Cam and Sportster application feature coated skirts.