Engine

These high quality replacement springs have been designed to exceeds the OEM specifications by fitting precisely on the spring shoulder diameter of both the OEM retainers, and KPMI« H.T. Steel retainers This kit also includes H.T. Steel basewashers in...

Designed to out-perform and outlast the factory valve springs Kit features lightweight, high-strength CrSi valve springs, H.T. steel base washers and titanium spring retainers Complete kit, everything you need to for a complete valve spring swap. VALVE...

Tensilite« valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloy Finished with a CrN PVD coating that has a low coefficient of friction, and is impact, abrasion, and corrosion resistant Made in the U.S.A.. VALVE INT TI...

Black DiamondÖ valves are CNC machined from one-piece forgings of EV8 Stainless Steel Black DiamondÖ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear Made in the U.S.A. Must use Kibblewhite«...

White DiamondÖ valves are CNC machined from one-piece forgings of EV8 Stainless Steel or Inconel-751 Electroplated with a 360? anode, to produce an even coat of the highest grade hard chrome finish Made in the U.S.A.. VALVE EX +1MM HON1000 16+

Keepers are made from high tensile strength steel. KEEPER SET 8/PR YZFR1

Extensive R&D on all applications to provide high-performance components that last longer than OEM Black Diamond valves are one-piece forgings made from 21-4N high-performance stainless steel Trademarked Black Diamond treatment provides a stem that has a...

Extensive R&D on all applications to provide high-performance components that last longer than OEM Black Diamond valves are one-piece forgings made from 21-4N high-performance stainless steel Trademarked Black Diamond treatment provides a stem that has a...

Black DiamondÖ valves are CNC machined from one-piece forgings of EV8 Stainless Steel Black DiamondÖ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear Made in the U.S.A. Must use Kibblewhite«...

All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance Keepers are not included Made in the U.S.A.. GUIDE EX STD YZFR1 98-03

Black DiamondÖ valves are CNC machined from one-piece forgings of EV8 Stainless Steel Black DiamondÖ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear Made in the U.S.A. Must use Kibblewhite«...

All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance Made in the U.S.A.. GUIDE EX STD HON1000 16+