Billet LS Feed Return Fuel Rail Kit GM LS3 V8 OE Intake Manifold Direct Fit AN6Billet LS Fuel Rail Kit GM LS3 V8 For OE Intake Manifold Hardware Direct Bolt On Billet fuel rail kit includes both rails, crossover line, and mounting hardware. Designed for use OE LS3 manifolds and stock LS3 fuel injectors. Features: Fuel Rail Kit for OE LS3 manifold Fits stock LS3 fuel injectors Billet aluminum construction Includes mounting brackets, crossover line, and hardware 11 16" ID rails, 6 crossover line with 6 fittings Engine GM LS3 L92