Designed for LS1/LS6 powered cars that require a shallow front sump oil pan. This pan is designed to use the stock pickup part number #12572654 from the 04-06 GTO, and factory windage tray #12558189. Its diamond shaped baffle with 4 trap doors and removable windage/anti-slosh baffle provide the best oil control under demanding street and track conditions. With provisions for a pan mounted dipstick and 20 mm oil temperature sensor along with a 6.5 quart system oil capacity. Will not fit on LS Next 2 blocks. Use stock gasket.