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. 
Fast Shipping with Professional Packaging
We provide a variety of shipping options thanks to our long-standing relationships with UPS, FedEx and DHL. Our warehouse personnel are well trained and will be able to pack your goods in accordance with the exact and precise specifications. Before shipping, all goods are carefully examined and secured. We deliver to thousands of clients each day across multiple countries. The fact that we're dedicated to becoming the largest online retailer in the world is obvious. Warehouses and distribution centers can be found in Europe as well as the USA.
Orders that contain more than one item are assigned processing times according to each item.
We will inspect each and every one of the items ordered before shipping. The majority of orders are shipped within 48-hours. Delivery is expected to take between 3 and seven days.
Returns
We do not manage the stock in our warehouse or factory. The levels of stock can change at any time. Please be aware that it's possible for your order to be out of stock after you have placed the order.
The policy is 30 days. If it's been longer than 30 days since you bought the item We're sorry to say that we can't offer you a full refund or exchange.
The item cannot be used, and it must be in its original condition. It must also still be in the original package.
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