Kibblewhite Black Diamond™ Exhaust Valve – Honda TRX400EX / TRX400X / XR400R (29mm EV8 Stainless)

🛠️ This Kibblewhite Black Diamond™ exhaust valve is precision engineered for durability and performance. CNC-machined from one-piece EV8 stainless steel, it’s treated with a special German nitroneg process that dramatically improves wear resistance, corrosion protection, and valve longevity—making it a superior upgrade for any top end rebuild.

✅ Features:

• Black Diamond™ Series: CNC-machined from EV8 stainless steel

• One-piece forged construction for superior strength

• Nitroneg-infused surface for max durability

• Superior to chrome and nickel plating in wear resistance

• Designed using F.E.A. software and flow-bench tested

• 29° tulip angle for improved exhaust flow

• Made in the USA

• Compatible with OEM retainers and keepers

📦 Fitment:

• Honda TRX400EX Sportrax: 2000–2005

• Honda TRX400EX FourTrax: 1999

• Honda TRX400X: 2009

• Honda XR400R: 1996–2004

📐 Specs:

• Application: Exhaust

• Series: Black Diamond™

• Head Diameter: 29.00 mm (1.142")

• Stem Diameter: 5.50 mm (0.2150")

• Length: 101.1 mm (3.980")

• Tulip Angle: 29°

• Material: EV8 Stainless Steel

• Units: Sold Each

• Weight: 0.13 lbs

🛡️ Warranty Info:

• Backed by Kibblewhite’s limited manufacturer warranty

• Made in the USA and trusted worldwide