The Wagner Tuning stainless steel made high flow 100CPI sports catalysts for Audi TTRS MK2 and Audi RS3 8P have a 2.75″ / 70mm diameter and are a direct bolt on upgrade for the OEM or performance exhaust !
– Direct bolt on
– 100% High-quality stainless steel 1.4301 (SS304) made
– 100 CPI high flow catalysts
– Diameter 70mm