Catalytic Converter for Audi A6 (2012-2015) 2.0L Front & Rear

Direct-Fit Catalytic Converter Assembly for 2012-2015 Audi A6

What it Does: The Front & Rear Direct-Fit Catalytic Converter replaces the degraded factory emissions assembly on the 2012-2015 Audi A6 2.0L to restore proper exhaust flow, clear P0420 catalyst efficiency codes, and maintain legal emissions compliance.

The Stock Audi A6 Exhaust Flow Degradation

Over extended mileage, the factory catalytic converter on the C7 chassis Audi A6 equipped with the 2.0L TFSI (EA888 Gen 2) experiences severe substrate breakdown and thermal fatigue. Due to aggressive direct-injection exhaust gas temperatures, common turbo blow-by, and high thermal cycling downstream of the turbocharger, the stock dense ceramic washcoat degrades and clogs. This internal restriction creates excessive backpressure on the turbine housing, triggering persistent P0420/P0430 diagnostic trouble codes, degrading fuel efficiency, and causing sluggish boost ramp-up.

The Engineering Solution

Engineered as a bolt-on solution, this complete front and rear converter assembly restores unrestricted exhaust velocity while ensuring robust emissions scrubbing. Built with a high-grade stainless steel outer shell, it resists road salt corrosion and thermal warping under severe exhaust conditions. Inside, a durable, flow-optimized ceramic substrate washcoat ensures effective catalytic reduction of NOx, CO, and HC emissions without choking turbo spool. Precision laser-cut flanges, OE-location sensor bungs, and included installation hardware guarantee a leak-free seal directly to the factory downpipe and mid-pipe connections without cutting or custom welding.

Technical Specifications

Compatibility

• 2012 Audi A6 Base / Premium / Premium Plus 2.0L L4 Gas (FWD / Quattro)
• 2013 Audi A6 Base / Premium / Premium Plus 2.0L L4 Gas (FWD / Quattro)
• 2014 Audi A6 Base / Premium / Premium Plus 2.0L L4 Gas (FWD / Quattro)
• 2015 Audi A6 Base / Premium / Premium Plus 2.0L L4 Gas (FWD / Quattro)

Frequently Asked Questions

Does this fit the C7 A6?
Yes, this is a direct fit for the 2012-2015 Audi A6 equipped with the 2.0L TFSI (EA888) engine.

Is this catalytic converter legal for road use in California?
No, this is an EPA-compliant federal catalytic converter and is not legal for sale or use in California or CARB-restricted states.

The Audi Precision Standard

German-engineered powertrains demand tight tolerances and exact sensor integration to maintain baseline fuel trims and avoid nuisance check engine lights. This catalytic converter assembly preserves factory backpressure curves, keeping the Audi engine management system in closed-loop harmony without recurring fault codes.