BMR Suspension offers several different styles of lowering springs which are designed for specific applications. Their Performance style spring is a good all around spring for a street car that may see the dragstrip here or there. It will provide the best ride quality for normal driving. The Handling version uses spring rates designed for road course and auto cross. Lastly, the BMR Drag springs are specifically designed for the dragstrip giving you the best weight transfer during the launch helping to get the 60ft times down and improving ET's. If you have any questions regarding any of BMR Suspensions lowering springs please feel free to give your Lethal Performance sales associate today. 561-753-8105.