You get added capacity, improved cooling and most of all 100% filtration before the oil reaches the main bearings. Nothing does it like CB's Thin Line Filter Sump. It bolts right on, no fooling around with drills, taps, and oversize hammers, just slip it on to all 40, 1300, 1500 and 1600 based engines. The Thin Line Filter Sump has the lowest profile in the industry - 1 7/8" from top to bottom. You can run it on Sedans, Buses and Squarebacks. Features a 6" bottom oil drain plate to allow easy installation and access to the included Maxi Lifetime Hi-Flo Oil Filter.