KB Performance Piston Kit - KB258.STD For Harley 1984-1999 Softail especially in the mid range

especially in the mid range and top end

Bracket can be mounted on a wall with 4 attachment points

Includes ThunderMax ECM with Auto-Tune Module

an inner pocket in the top shell

Our OG 13" Complete Radial Big Brake Kit unleashes the full potential of your performance Harley build using the Brembo M4 Monobloc radial calipers

KB Performance Piston Kit - KB258.STD For Harley 1984-1999 Softail especially in the mid rangeFeatures Manufactured from high strength, T 5, heat treated, 390 hypereutectic aluminum alloy Allow a tighter fit and longer piston and ring life Diamond machined pistons are held to plus or minus one gram weight and less than one half thousandth inch (. 0005") tolerances from piston to piston Each kit contains two pistons, pins, spiral lock pin clips and Hastings moly rings Replacement piston rings and pin lock rings available separately KB pistons