Catalytic Converter for BMW 535i (2011-2015) 3.0L

Direct-Fit Stainless Catalytic Converter for 2011-2015 BMW 5 Series (F10 / F07)

What it Does: This direct-fit EPA catalytic converter replaces the failed turbo-back unit on 2011-2015 BMW 535i F10 and F07 models with the N55 3.0L I6 to restore emissions and exhaust flow.

The Stock BMW 5 Series Substrate Failure

Mounted directly behind the twin-scroll turbocharger on the F10 and F07 chassis, the OEM converter absorbs severe heat soak from the N55 3.0L Turbocharged I6. Repeated thermal cycling, boost heat, and misfire-related unburned fuel cause the factory ceramic honeycomb substrate to fracture, melt, or separate. Broken monolith fragments restrict exhaust flow and degrade oxygen storage capacity, triggering P0420/P0430 catalyst efficiency faults.

Common Symptoms of a Failing OEM Catalytic Converter

• Check Engine Light / DTCs: Triggers P0420/P0430 codes when post-catalyst oxygen sensors detect degraded emissions conversion.
• Metallic Substrate Rattle: Fractured ceramic monolith rattles inside the housing during cold starts and deceleration.
• Backpressure & Emissions Failure: Collapsed substrate segments restrict turbine discharge flow and cause failed emissions inspections.

The Direct-Fit Stainless Catalytic Converter Solution

Engineered for bolt-on installation behind the turbocharger on F10 and F07 535i models, this unit features a stainless steel body (8 in length, 5 in height) with V-band inlet, mounting bracket, and slip-fit outlet. Its ceramic honeycomb substrate uses a precious-metal washcoat to convert HC, CO, and NOx without cutting or welding. Dual pre- and post-catalyst O2 sensor ports preserve accurate OBD-II monitoring.

What's Included

• 1 x Catalytic Converter (Part # BMW1113353I)
• 1 x Exhaust Clamp
• 1 x Gasket Ring

Technical Specifications

Compatibility

• 2011-2015 BMW 535i (F10, N55 3.0L Turbo I6)
• 2011-2015 BMW 535i xDrive (F10, N55 3.0L Turbo I6)
• 2011-2015 BMW 535i Gran Turismo (F07, N55 3.0L Turbo I6)

Frequently Asked Questions & Fitment Warnings

Does this fit the F10 / F07 5 Series?

Yes. Direct fit for 2011-2015 BMW 535i, 535i xDrive, and 535i Gran Turismo with the N55 3.0L Turbocharged I6. Excludes 528i, 550i, and 535d diesel; EPA federal converter not legal in CA, NY, CO, or ME.

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

Yes for catalyst-related codes; O2 sensors are not included. Transfer existing sensors or install new units after checking for exhaust leaks to resolve P0420/P0430 faults.

Are gaskets and hardware included for installation?

Yes. Includes an exhaust clamp and gasket ring; soak fasteners with penetrating oil when cool and torque evenly.

The BMW Precision Standard

Built to factory turbo-back tolerances, this converter restores OBD-II readiness and CEL-free operation on your N55-powered 5 Series. Compare with your original unit before installation.