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Supertech Performance Dual Valve Springs, Titanium Retainers, & Spring Seats BMW S14 16V E30 M3 Engine Spring Kit Part # SPRK-H1022D-S14 Contents: 16x SPR-H1022D/S14, 16x RET-H70/T1 & 16x SEAT-H1002D Supertech Valvetrain has proven in a variety of motorsports applications from mild 150 horsepower street engines to 1000+ Horsepower race cars. Don't be fooled by lesser quality valvetrain components, stick with Supertech and get the quality you deserve for your project that will fit right the first time and offer superior performance and longevity. Supertech Valve Springs are made with premium Superclean Chrome Silicone Vanadium Steel alloy for higher performance and durability at high RPM's and better memory. 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 Supertech Retainers are manufacturer with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability. Spring Specifications: Outer Spring -- 29.00mm OD -- 21.80mm ID Supertech Performance is best known for high performance valves, and valvetrain components. With over 30 years of experience Supertech performance has been providing the racing market with first class parts for every type of racing application. Whether it is Drag Racing, IRL, Rally, Road Racing or any other motorsport for that matter, Supertech Performance has the perfect performance solution for your application.
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