Audi 4.0T Catted Downpipe For S6 S7 RS7 A8 S8 - ARM Motorsports

HIGHLIGHTS • Gain up to 37whp / 42wtq• Faster Turbo Spool • Improved Exhaust Note Here Catless Version PROFILE The ARM 4.0T Catted Downpipes immediately improve backpressure in your exhaust system,allowing your Audi 4.0T turbos to spool faster and generate more power lower in the RPM range. The OEM 4.0T downpipes incorporate two large coffee can-size catalysts which reduce exhaust flow and power from your 4.0T.  By replacing your OEM 4.0T downpipes with the ARM 4.0T Catted downpipes you will eliminate this restriction and free up exhaust flow.Another drawback of the OEM downpipes is they are designed to cross over each other.  The driver side turbo connects to the passenger side midpipe, and vice versa on the opposite side.  This forces the exhaust gasses to take a longer pathway with several sharp kinks and turns. The ARM 4.0T Catted Downpipes begin and end on the same side to improve airflow and shorten the travel-path of the exhaust gasses. This results in faster turbo spo