OBX Blue Fuel Injection Rail for 88-95 Honda Civic/CRX/del Sol with D15/16 Series Engines OBX Injection High Technology * 7/16 Enlarged bore for maximun fule flow exceleration. * One piece lightweight design to prevent fuel leakage. * Bolt-on precise fitting. * Mounting hardware areincluded. * Dyno tested and proven to gain 4~6 horse and torque power. * Backed by OBX limited lifetime warranty.