Engineered exclusively for 4.0 TFSI engines in the Audi RS6 C8 and Audi RS7 C8, Milltek's downpipes feature a robust 3.15" (80.00mm) diameter, meticulously crafted from high-quality T304 stainless steel. These downpipes boast precision TIG welds and a high-flow design, seamlessly connecting the turb..