- Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel
- Lightweight, strong, one piece forging with profiles that provide excellent flow characteristics
- Valve is infused by a special German process to a depth of .002, with a surface build up of .0002 which improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating
- Each valve is designed using Finite Element Analysis (F.E.A) software, and profiles are tested on a computerized flow bench
- Stems are coated with black nitroneg
- Made in the USA
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2002-2004 | Yamaha | Grizzly 660 YFM660F 4x4 | |
| 2005-2006 | Yamaha | Grizzly 660 YFM660FA 4x4 | |
| 2008 | Yamaha | Grizzly 660 YFM660FA 4x4 | |
| 2007 | Yamaha | Grizzly 660 YFM660FG 4x4 | |
| 2001-2005 | Yamaha | Raptor 660R YFM660R | |
| 2004-2007 | Yamaha | Rhino 660 YXR660FA 4x4 | |
| 2006-2007 | Yamaha | Rhino 660 YXR660FAEX 4x4 Exploring Edition | |
| 2006 | Yamaha | Rhino 660 YXR660FASE 4x4 Special Edition | |
| 2007 | Yamaha | Rhino 660 YXR660FDU 4x4 Ducks Unlimited Edition | |
| 2007 | Yamaha | Rhino 660 YXR660FSE 4x4 Special Edition | |
| 2007 | Yamaha | Rhino 660 YXR660FSP 4x4 Sport Edition | |