Supertech Dual Valve Spring Kit for Evo X
Supertech dual valve spring kits for 4B11 Evo X. Includes 16 dual springs, 16 titanium retainers and 16 valve seats. Please do all your research and consult your engine builder if necessary!
Vehicle Fitment:
2008-2015 Evolution X
Purchase Includes:
(16) Dual Valve Springs
(16) Titanium Retainers
(16) Valve Seats
All Supertech valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for higher performance and durability at high RPM. Using high quality steel alloy also provides the added benefit of better structural memory.
Supertech retainers are manufactured with high quality military certified Titanium alloy, and are CNC machined for a tight fit.
SPRK-M1012-EX1 is pictured.
Vehicle Fitment:
2008-2015 Evolution X
Purchase Includes:
(16) Dual Valve Springs
(16) Titanium Retainers
(16) Valve Seats
| Part Number: | Seat Pressure: | Open Pressure: | Details: |
| SPRK-M1012-EX1 | 75 @ 34.50 | 185 @ 11.50 | Max Lift: 14.50mm Coil Bind: 20.00mm Rate: 9.60 lbs/mm Retainer: RET-TS55/T1-EX Spring: SPR-M1012/EX1 Seat Locator: SEAT-M1015-2 + OEM seat locator |
| SPRK-M1012-EX2 | 75 @ 35.30 | - | Discontinued |
| SPRK-M1015-EX3 | 85 @ 34.50 | 228 @ 11.50 | Max Lift: 13.80mm Coil Bind: 20.70mm Rate: 12.1 lbs/mm Retainer: RET-TS55/T1-EX Spring: SPR-TS1015 Seat Locator: SEAT-M1015-2 + OEM seat locator |
Supertech retainers are manufactured with high quality military certified Titanium alloy, and are CNC machined for a tight fit.
SPRK-M1012-EX1 is pictured.
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