Hayabusa Kibblewhite Inconel Exhaust valves oversize 28.5mm Set of 8

8 x 28.5mm Kibblewhite Super Duty Exhaust Valves. Hayabusa 1999 to 2025. 

One-Piece-Forged “Super Alloy” Inconel® 751

• Retains all mechanical properties at elevated temperatures
• Something only super alloys can do
• Maintains corrosion resistance at elevated temperatures
• Something only super alloys can do
• High Nickel content for superior strength and toughness
• A must for Forced Induction or Nitrous

Manufactured by KPMI® under the registered trade mark of White Diamond®

• White Diamond®
• One-Piece-Forged with a Hard Chrome Stem

Flow Characteristics

• Out-flows all other valves on the market with a 17° Tulip, .315 Radius, and a .090” wide face