This sump is sealed to prevent leaks. Especially designed for racing, low riders and off road. They are made in the USA by SCAT. 356-T6 aircraft quality aluminum castings-guaranteed not to leak like the cheap imports when car bottoms out. Reinforced internal stands for maximum strength and prevents base of sump from breaking when bottomed out against curb or rock. Completely finned for maximum heat dissapation and oil cooling. Simplified bolt on installation with socket head allen cap screws-stock studs from engine case are removed and used to install stock drain cover plate to bottom of new sump. Installation hardware and oil pickup tube extension included.