Progressive spring rate maintains ride quality while improving road feel and handling
Made of cold-wound high-tensile chromium-silicone wire
Individually super blocked and computer tested against tight tolerances
By redesigning OE springs and lowering the center of gravity from 0.9"; to 2.5"; (depending on application), B+G has produced springs that will dramatically enhance your car';s performance and appearance. Progressive-rate design ensures higher spring rates for better road ";hold"; plus riding comfort. 1S09001, QS1400 and TUV certified. Set of 4. Limited lifetime warranty.