KB Hypereutectic Piston 4.290" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 5.0 cc 1425004 Black MIL-Spec Anodized Finish

Black MIL-Spec Anodized Finish

Less fade means you will have better pedal feel and more consistent performance in a durable brake pad that generates less brake dust

Easy integration of Communication Equipment

230 lb/in Spring Rate

Red Cushioned Grip

KB Hypereutectic Piston 4.290" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 5.0 cc 1425004 Black MIL-Spec Anodized FinishProduct Description: Piston KB Series Hypereutectic 4. 290 in Bore 5 64 x 5 64 x 3 16 in Ring Grooves Minus 8. 00 cc Mopar B Series Set of 8 Created from a high silicon aluminum alloy, KB Performance pistons are lightweight to improve throttle response and RPM changes while still being strong enough to withstand high compression and high temperatures. Each piston is engineered with race ready features like high upper compression ring locations, gas