Chevrolet HHR (2008-2010) 2.4L. Chevrolet Equinox (2010) 2.4L. Buick Regal (2011) 2.4L. Chevrolet Malibu (2008-2012) 2.4L. It ensures enhanced engine performance and smooth throttle operation. This throttle body may necessitate a relearn procedure or an ECM re-flash to ensure optimal functionality and performance.