B D H K Series Tucked Fuel Line Kit For Honda Civic Integra Feed Return Line EG EK CRX K20 K24This kit Includes a Feed line with an Inline Filter and a Return line. We do not cut corners with our kits. Each kit comes with two hardline adapters for proper seal for both feed and return lines. All fittings are anodized 6061 aluminum. Designed for maximum flow rates. ***Return Line is designed for the OEM Fuel pressure regulator or rail mounted regulators only.*** This is a DIY kit and will require tools (Not provided in kit) to complete this