Parts Information
| Part | Manufacturer | OEM Part # | Price | Notes |
| Valve Springs | ||||
| Intake | ||||
| Inner | ||||
| GSR | ACU | 14751P72003 | 9.58 | |
| Type R | ACU | 14751P73J01 | 7.43 | |
| Outer | ||||
| GSR | ACU | 14761P72003 | 10.93 | |
| Type R | ACU | 14761P73J01 | 8.68 | |
| Exhaust | ||||
| GSR | ||||
| Nippon Hatsujo | ACU | 14762P30003 | 11.13 | |
| Chuo Hatsujo | ACU | 14762P30004 | 10.95 | |
| Type R | ||||
| Inner | ACU | 14751P72003 | 9.58 | |
| Outer | ACU | 14761P72003 | 10.93 |