This catalytic converter with integrated exhaust manifold - a.k.a. manifold converter - is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Buick LaCrosse: 2013, 2014, 2015, 2016] - [Cadillac XTS: 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [Chevrolet Impala: 2014, 2015, 2016, 2017, 2018, 2019, 2020]