Supertech Performance SPRK-H1005D/1FZ Dual Valve Spring 100@ 36.20mm SPR-H1005D + RET-H70/T1 + SEAT-H/N240 (+OEM) + Oil seals

Supertech Performance SPRK-H1005D/1FZ Dual Valve Spring 100@ 36.20mm SPR-H1005D + RET-H70/T1 + SEAT-H/N240 (+OEM) + Oil seals

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.

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