Catbacks and downpipes are distinct animals completely. The downpipe could be the piping that connects for the turbine. The catback, Then again, relates to all the things once the final catalytic converter and goes all the way back into the muffler. Some people utilize the term “downpipe” to describe a https://angelovbhm28528.gigswiki.com/4960674/maximizing_performance_the_ultimate_guide_to_downpipes_for_mercedes_benz_gle_63_amg