IAG offers our V2 Oil Pickup, Street Series Baffle and Windage Tray combined with our New Oil Pan as a complete package. The IAG Street Series Oil Pan for the Subaru WRX and STI is uniquely designed and CNC machined to suit a wide range of street and track applications. The cast aluminum oil pan was designed with fitment for a larger variety of popular headers in mind, while still increasing oil capacity up to 30% over OEM. The design incorporates cooling fins to aid in dissipating heat from the oil as air passes over them. The included oil drain plug is integrated into the lower cooling fins at the absolute bottom of the pan to make sure all the waste oil is removed during maintenance changes. The oil drain plug uses an OEM style crush washer. The oil pan is also threaded with 1/8th inch NPT port to accept many popular oil temperature sensors. 1/8th inch NPT plug is also included in the event that the sensor port is not used. The upper flange mounting surface is CNC machined for better hardware fitment. The flange features a sealing O-ring for easier installation and removal. The pan is designed to use the included OEM style Viton dipstick o-rings with a unique chamfer to aid in the installation of the dipstick. Internally, the pan includes our integrated, stainless steel, Street Series Oil Baffle that is designed to prevent oil inside the pan from sloshing around and creating cavitation, which can lead to oil starvation. The baffle is engineered to be removable for future upgrades and easy cleaning. About Windage TrayThe job of the windage tray is to help direct oil from the upper crankcase down into the lower crankcase and oil pan area. Manufactured from stainless steel, precision-formed louvers direct oil downwards and help to prevent oil that is draining from the cylinder heads in the lower crankcase area from sloshing upwards into the path of the crankshaft and connecting rods, thus reducing aeration.