Supertech Dual Valve Spring Kit for Evo X (SPRK-M1012-EX1)




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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

Part Number: Pressure Seat: Details:
SPRK-M1012-EX1 75 @ 34.50mm 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
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.
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See more Supertech Parts
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