45 degree, Painted Black;Includes thermostat housing, o-ring seal, plate and hardware for easy fit; Available in Chrome, Black, and Hand Polished finish; Available outlets: Straight, 15 degree, 45 degree, and 90 degree.; Easy add-on for your manifold; Fits most early model V-8; Lower cooling system temperatures for more power; For use on muscle car, drag race, circle track users;