OE LSA Flex Drive Triple Idler and Tensioner Bracket - 8/10/12 Rib (Direct Drive Superchargers)LSX Concepts OE LSA Adjustable Triple Idler, which provides additional belt wrap on the upper pulley, has three positions for the lower idler pulley, which provides a 1 2 inch belt length adjustment for each position for a total of 1. 5 inches of adjustment. Designed to be used with our "OE LSA Flex Drive Tensioner Bracket" which has eight indexable positions for the tensioner, which provide an additional 1. 5 inches of adjustment. This system is