We had a local customer take advantage of our FI downpipe + DME Stage 2 tune special. He drove all the way from NorCal and he left extremely happy. 

He opted for the stock less aggressive burble setting. The downpipes alone add a more aggressive pop & crackle noise but the tune adds a significant amount as well. 

Stage 2 from DME Tuning yields 650 horsepower + 730 ft lbs of Torque at the crank. All of this can be done through the OBD port of the car without removal of the ECU. We have the required tools to tune at our facility in Los Angeles or can ship you the necessary tools and walk you through the process if you are not local! 

Links to the items below! 

DME Tune - https://autotalent.com/products/dme-tuning-obd-ecu-upgrade-for-mercedes-benz-c63-s-amg-w205-2016-2019?_pos=2&_sid=fc3b39367&_ss=r

FI Downpipe - https://autotalent.com/products/catless-downpipe-fi-downpipe-mercedes-benz-w205-c63-c63s-amg?_pos=1&_sid=20f417955&_ss=r