Cut harmful tailpipe emissions and keep exhaust flowing freely with the AP Exhaust Catalytic Converter 644025, a Federal / EPA direct-fit front converter built to bolt into the factory location. It drops in as a direct-fit replacement for the 2009-2016 Audi A4 [L4-2.0L], 2009-2016 Audi A4 Quattro [L4-2.0L], 2010-2014 Audi A5 [L4-2.0L], 2010-2017 Audi A5 Quattro [L4-2.0L], 2013-2016 Audi Allroad [L4-2.0L], and 2011-2017 Audi Q5 [L4-2.0L].
- 409 stainless steel: stainless steel shell and neck construction for longer life.
- Ceramic substrate: features Aristo Clean by Design catalyst technology to handle demanding emissions loads.
- Welded-flange design: 4-bolt welded inlet and 3-bolt welded outlet flanges, with two sensor ports.
- Hardware included where needed: outlet hardware is supplied for faster, easier installation; no inlet hardware or gaskets are included.
A catalytic converter chemically reduces the harmful gases in the exhaust stream. If a clogged, failed, or code-triggering converter is the cause, this replaces it. Federal / EPA direct-fit and not CARB certified — not legal for sale or use on pollution-controlled vehicles registered in California, Colorado, Maine, New York, or Washington. Country of origin: United States.
