Description
Supertech Performance SPRK-V1107D/7 Dual Valve Spring (7mm stem) 147@ 34mm SPR-V1107 + RET-021
Supertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm’s. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.
Specifications:
| CAR MAKE | VW |
| CAR MODEL | 7mm Stem Race Only |
| ENGINE SPECIFICATIONS | 1.8L 2.0L 8V |
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