Seller notes

Supertech Performance Dual Valve Spring and Titanium Retainer Kit for the BMW M3 (E30) - 16v S14 Engines - 90lb SPRK-H1005D/S14 - Supertech Dual Valve Springs - 90 lb Seat Pressure Outer Spring - 29.65mm OD - 21.85mm ID Inner Spring - 20.50mm OD - 15.50mm ID 90 lb seat pressure @ 35.50mm 14.80mm Max Net Lift 21.50mm Coil Bind 11.50 lbs/mm Rate Will Fit BMW M3 (E30) - 16v S14 Engines. Complete set of 16 Dual Valve Springs, 16 Titanium Retainer's, and Seat's This Package Includes: Supertech Perfor...

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