Catalytic Converter for Hyundai Genesis Coupe (2010-2012) 2.0L

Direct-Fit Stainless Catalytic Converter for 2010-2012 Hyundai Genesis (BK1)

What it Does: This direct-fit catalytic converter bolts behind the turbocharger on the 2010-2012 Hyundai Genesis Coupe (BK1) equipped with the G4KF 2.0L Turbo I4 to convert HC, CO, and NOx exhaust gases and restore OBD-II emissions compliance.

The Stock Hyundai Genesis Substrate Failure

Mounted directly at the turbocharger outlet, the factory converter on the BK1 chassis equipped with the G4KF 2.0L Turbo I4 endures extreme exhaust gas temperatures and constant thermal cycling. Repeated heat soak fractures the internal ceramic honeycomb substrate and degrades the precious-metal washcoat. Once the core breaks apart or clogs, downstream oxygen sensors detect insufficient oxygen storage capacity, triggering P0420 or P0430 catalyst efficiency fault codes. That internal obstruction also increases backpressure and restricts turbo spool.

Common Symptoms of a Failing OEM Catalytic Converter

• Check Engine Light / DTCs: Persistent P0420 or P0430 fault codes caused by degraded washcoat conversion efficiency.
• Metallic Substrate Rattle: Audible rattling beneath the chassis at idle or deceleration from a fractured ceramic core.
• Drivability & Emissions Failure: Excessive exhaust backpressure, sluggish boost response, and failed emissions inspections.

The Direct-Fit Stainless Catalytic Converter Solution

Built for the BK1 platform, this converter pairs a corrosion-resistant stainless steel body (8-inch length, 5-inch height) with a ceramic honeycomb substrate coated in precious metals. Precision-welded turbo-side and downstream flanges, factory-style support brackets, and dual pre- and post-catalyst O2 sensor bungs ensure exact bolt-on alignment without cutting or welding. Full OBD-II compatibility restores normal exhaust velocity and clears catalyst-related fault codes on G4KF 2.0L Turbo I4 engines.

What's Included

• 1 x Catalytic Converter
• 1 x 2-Bolt Flange Gasket
• 1 x 3-Bolt Flange Gasket
• Mounting bolts, nuts, and washers

Technical Specifications

Compatibility

• 2010-2012 Hyundai Genesis Coupe 2.0T Base (2.0L Turbo I4)
• 2010-2012 Hyundai Genesis Coupe 2.0T Premium (2.0L Turbo I4)
• 2010-2012 Hyundai Genesis Coupe 2.0T GT (2.0L Turbo I4)
• 2010-2012 Hyundai Genesis Coupe 2.0T R-Spec (2.0L Turbo I4)
• 2010-2012 Hyundai Genesis Coupe 2.0T Track (2.0L Turbo I4)

Frequently Asked Questions & Fitment Warnings

Does this fit the BK1 Genesis?

Yes. This is a direct fit for the 2010-2012 Hyundai Genesis Coupe equipped with the G4KF 2.0L Turbo I4 engine. Excludes the 3.8L V6, 2013-2014 2.0T models, and the Genesis sedan; this EPA federal converter is not CARB-approved and cannot be registered in California, New York, Colorado, or Maine.

Will this clear P0420/P0430 codes, and are O2 sensors included?

Yes, replacing a failed converter clears efficiency codes, though oxygen sensors are not included. Transfer your existing O2 sensors or install new units after checking for exhaust leaks that can trigger P0420 or P0430.

Are gaskets and mounting hardware included for installation?

Yes. Both the 2-bolt and 3-bolt flange gaskets plus mounting bolts, nuts, and washers are supplied. Allow the exhaust to cool completely, soak seized fasteners with penetrating oil, and torque all flange hardware evenly.

The Hyundai Performance Standard

Engineered for the turbocharged BK1 coupe, this stainless converter eliminates restrictive exhaust backpressure to preserve crisp turbo spool and throttle response. Reliable bolt-on geometry keeps your G4KF 2.0L Turbo I4 running clean and CEL-free on the street.