Catbacks and downpipes are different animals completely. The downpipe could be the piping that connects into the turbine. The catback, Alternatively, relates to anything once the past catalytic converter and goes the many way back again to the muffler. To reinforce operation, some downspouts are Geared up with extendable sections. https://gunnerwcfim.levitra-wiki.com/796062/downpipe_an_overview