an exhaust system for an internal combustion engine comprises a turbocharger , an exhaust pipe , a first diesel particulate filter , a second diesel particulate filter , and a flow control valve . the exhaust pipe has a first portion , a second portion , and a third portion . at least the second portion of the exhaust pipe comprises a plurality of fluid paths . the first diesel particulate filter is coupled to on one of the plurality of fluid paths between the second portion and the third portion of the exhaust pipe . the second diesel particulate filter is coupled to another of the plurality of fluid paths . the flow control valve is disposed within the second portion of the exhaust pipe . the flow control valve is response to an input signal indicative of an operating condition and is configured to control exhaust flow to the first diesel particulate filter and the second diesel particulate filter in response to the input signal .