Mitsubishi Endeavor V6-3.8L 2004-2008 Downstream. Mitsubishi Endeavor V6-3.8L 2010-2011 Downstream. Mitsubishi Galant V6-3.8L 2004-2007 Downstream. Mitsubishi Galant V6-3.8L 2009 Downstream. ● High Performance - Oxygen Sensor Features double protection layer, aluminum oxide trap layer, PTFE filter, and stainless steel housing.