Catalytic Converter for Hyundai Elantra (2007-2012) 2.0L Rear

Direct-Fit Rear Catalytic Converter for 2007-2012 Hyundai Elantra

What it Does: The direct-fit rear catalytic converter replaces degraded factory downstream emissions units on the 2007-2012 Hyundai Elantra to restore proper exhaust velocity, eliminate catalyst efficiency diagnostic trouble codes, and ensure complete tailpipe emissions compliance.

The Stock Hyundai Elantra Catalyst Degradation

Factory underfloor catalytic converters on the HD chassis Elantra suffer from thermal fatigue and substrate washcoat breakdown over prolonged mileage. As the factory washcoat degrades, precious metal loading depletes, preventing the secondary catalyst from neutralizing unburned hydrocarbons and carbon monoxide downstream of the manifold converter. This progressive degradation causes internal substrate crumbling, exhaust backpressure spikes, and recurring P0420 fault codes that trigger check engine warnings and fail state emissions inspections.

The Engineering Solution

This direct-replacement unit features a heavy-gauge 409 stainless steel housing designed to withstand extreme thermal expansion cycles and exterior road-salt corrosion without seam failure. Internally, a dense, high-flow ceramic honeycomb substrate coated with an optimized washcoat facilitates rapid catalytic light-off and maximizes exhaust scrubbing efficiency while minimizing exhaust backpressure. Precision-cut, thick OE-style flanges match the factory downpipe and mid-pipe connections perfectly, while the included hardware and replacement seals ensure a leak-free, bolt-on installation without cutting or custom fabrication, directly restoring stock Beta II (G4GC) exhaust flow dynamics.

Technical Specifications

Compatibility

• 2007 Hyundai Elantra 2.0L Rear (Sedan)
• 2008 Hyundai Elantra 2.0L Rear (Sedan)
• 2009 Hyundai Elantra 2.0L Rear (Sedan, Touring)
• 2010 Hyundai Elantra 2.0L Rear (Sedan, Touring)
• 2011 Hyundai Elantra Touring 2.0L Rear (Wagon)
• 2012 Hyundai Elantra Touring 2.0L Rear (Wagon)

Frequently Asked Questions

Does this fit the HD Elantra?
Yes, this is a direct fit for the 2007-2012 Hyundai Elantra equipped with the 2.0L Beta II (G4GC) engine in the rear downstream exhaust location.

Will this resolve downstream P0420 catalytic efficiency codes?
Provided upstream oxygen sensors and air-fuel mixtures are within spec, this fresh high-efficiency ceramic substrate clears emissions-related catalyst failure codes.

The Hyundai Reliability Standard

Engineered to deliver long-term service life and quiet factory tone, this emissions assembly restores fuel efficiency, clean combustion compliance, and reliable daily operation for commuter-driven Hyundai platforms.