LJRC Performance Parts is an automotive racing parts retailer serving racers and enthusiasts with components, equipment, and accessories for competition vehicles. Its online store organizes products across a broad range of categories, including engine and drivetrain parts, fuel systems, suspension, steering, brakes, electrical components, safety equipment, wheels and tires, and tools. Shoppers can browse by category, brand, or keyword, and the site highlights new, sale, and new-old-stock items.

The catalog features products from numerous established racing and performance brands, including Holley, MSD Ignition, Aeromotive, QA1, Wilwood, Hoosier, and Weld Racing. LJRC also offers its own branded products, such as lightweight steering wheels, steering hubs, parachutes, harnesses, window hardware, and composite body parts. Examples in the store include carburetors, rod ends, racing buttons, and a carbon-fiber front end for 2010–2014 Mustangs. The retailer says it adds products and brands regularly and invites customers to contact its sales team by phone or email if they cannot find an item. It also provides account registration, sign-in, and order tracking for online shoppers.