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The sporty Cat-back exhaust system from Remus is dedicated to the Audi RS4 B9 2.9 TFSI (2018+).
It is made entirely of stainless steel and is finished with either two or four tips in several finishes to choose from (see: "Available options"). The system is compatible with the stock downpipes. No additional modifications are required for installation.
The end mufflers are equipped with valves that allow for sound adjustment of the exhaust. The system is controlled via the car's onboard computer in the same way as with the stock exhaust system.