【Brand】GAM was established in 1999. Our oxygen sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. Our sensors are engineered with OEM fit, form and function by examining the OE sensors physical, electrical and functional characteristics. 【Warranty】This oxygen sensors are covered by our 30 Day HASSLE-FREE return period & a 12 months replacement promise. Our goal is excellent customer service, so buy with confidence. 【Compatibility】Compatible With Ford Mustang V6 3.8L 1995-2004; Ford Mustang V6 3.9L 2004; Ford Mustang V6 4.0L 2005-2010 【Compatibility】Compatible With Ford Mustang V8 4.6L 1996-2010; Ford Mustang V8 5.0L 1995; Ford Mustang V8 5.4L 2007-2010 【Package】Includes Complete Replacement Set. Position: Upstream (Front) 2 pcs & Downstream (Rear) 2 pcs