The Milltek Catback Exhaust System Audi A4 2.0 TFSI S line B8 (2WD and Quattro manual-only) Saloon & Avant 2008-2011 for your 2008-2012 Audi A4 is a great way to increase horsepower and torque gains by replacing your restricted factory car exhaust system.

The Milltek Catback Exhaust System Audi A4 2.0 TFSI B7 Quattro and DTM 2005-2008 for your 2005-2008 Audi A4 is a great way to increase horsepower and torque gains by replacing your restricted factory car exhaust system.

The Milltek Catback Audi A5 Sportback 3.0 TDI quattro Manual / Multitronic / S tronic 2009-2022 for your 2008-2011 Audi A4 is a great way to increase horsepower and torque gains by replacing your restricted factory car exhaust system.

The Milltek Catback Audi A5 Coupe 2.0 TDi 2007-2021 for your 2009-2011 Audi A4 is a great way to increase horsepower and torque gains by replacing your restricted factory car exhaust system.