CSI Group was started in Dec, 2011 on a mission to bring quality products at a very competitive price. We are located in Southern California with over 20,000 Sq.Ft warehouse that we hold and ship our products from. "CUMART" is our registered brand name. CUMART specializes in aftermarket performance parts and accessories. Our goal is to strive for the highest level of customer service to ensure the satisfaction of all our customers.