01
Real experience
We test before we recommend.
PRODUCT DESCRIPTION
Dual Valve Spring Kit
Seat Pressure: 75 at 33.90
Open Pressure: 193 at 12.5
Max Lift: 13.00mm
Spring Coil Bind: 20.00mm
Rate: 9.6
Kit Spring: SPR-TS1012
Kit Spring Quantity: 16
Retainer: RET-TS5.5/T1F
Retainer Quantity: 16
Inner Spring ID: 15.20mm
Inner Spring OD: 20.00mm
Outer Spring OD: 27.50mm
Outer Spring ID: 20.00mm
Seat Locator: SEAT-EC1015
Engines
GM - Ecotec LSJ
Manufacturer: SuperTech
SKU: ST-SPRK-TS1012-EC
These images are representative; actual product images may vary.










WHY THETUNERLAB
We have spent years building cars, racing, and testing the exact same parts that we sell.
01
We test before we recommend.
02
We help you choose the right part.
03
Only trusted manufacturers.
04
Before and after the purchase.
+10 years
of passion for drifting
+30.000
available products
+5.000
satisfied customers
24/7
passion for motoring
Each product indicates compatible models in the product description. If you have any questions, you can contact us and we will help you choose your best option.
-If the product is in stock, the usual delivery time is 2 to 5 working days.
-If the product is out of stock, the delivery time is 7 to 15 working days.
All our products come with the manufacturer's official warranty and comply with current regulations.
Yes. We ship orders to Spain and most European countries using specialized transport agencies.
You can contact our team via WhatsApp, email, or our website's contact form.
Shipping costs depend on the type of product, its weight, dimensions, and the destination country. In most cases, the amount is calculated automatically during the checkout process before the order is finalized.
For some products, especially large items or those with special characteristics, shipping costs may require a manual review. If the amount shown does not match the actual shipping cost, we will contact you before processing the order to inform you of the final cost and request your confirmation before proceeding. We will never charge any additional fees without your authorization.