6.4L Description
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
 Courtesy of CHRYSLER GROUP, LLC
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The exhaust system on the 6.4L models consists of a Y-pipe (1) with integrated catalytic converters (2), exhaust extension pipe (3), muffler (4), support isolators (4), and a tailpipe/resonator assembly (6). The upstream and downstream oxygen sensors are located in the Y-pipe.