Black 44mm Water Cooled External Turbo Manifold Wastegate High strength cast steel body with steel head V-Band clamp-on design, fits any 44mm turbo manifold clamp-on wastegate port Bolt-on housing design for secure spring changing and adjustment High pressure reinforced and temperature resistant actuator diaphram included Comes with 13 psi spring installed and 2 springs (7.5 psi and 1.5 psi) for replacement