CTS Turbo High Flow Cat for use with CTS-EXH-DP-0001 M40i Our downpipes are the best

Our downpipes are the best bang for your buck mod available for your C8 RS6/RS7 with gains from 50 Horsepower and 60 Torque when tuned

Along with providing an increased coolant capacity of 91%

Pure white color

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CTS Turbo High Flow Cat for use with CTS-EXH-DP-0001 M40i Our downpipes are the bestHigh Flow Cat section only for use with CTS EXH DP 0001 \n \nTHIS PART IS MADE TO ORDER, PRODUCTION TIME MAY BE UP TO 10 BUSINESS DAYS \n \nTo remove the CEL that will occur, proper tuning software must be used. CTS Turbo recommends choosing a High Flow Cat for the sake of our environment! \n \nStage 2 software is required to avoid check engine light. \n \n