The Tomei valve springs for the 4B11 Evo X includes a full set of 16 springs. Recommended for use with upgraded cams.
Vehicle Fitment:
2008-2015 Evolution X
Features:
• Multi Coil Unequal Pitch Springs
• Oil Tempered Chromium-silicone Alloy
• Shot Peening
• Hot Setting
• Nitriding
Includes:
(16) Springs
Additional Specs:
• Wire Diameter: 3.40×4.25
• Rev Limit: 8500
• Material: SWOSC-V
• Treatment: Nitride
Current Part Number | Old Part Number |
TA304A-MT02A | 163051 |