BMW 4 Series Catalytic Converter F32 / F33 / F36 (2013-2020)

A catalytic converter is a crucial component of the exhaust system in BMW 4 Series models (F32 Coupé, F33 Cabriolet, F36 Gran Coupé, produced 2013-2020+). It reduces harmful emissions by converting pollutants into less harmful gases, ensuring compliance with environmental standards such as Euro 6, while also optimising exhaust flow for engine efficiency and sound.

Main compatibility includes:

• Diesel 420d/420d xDrive (135 kW, 2013-2015) with N47D20C engine – sport stainless steel catalytic converter + replacement DPF tube (60 mm diameter) for F32 Coupé.
• Diesel B47D20A engine (2014-2018, Euro 6) in 418d F32/F36, 420d F33/F36, 420d xDrive F36, 425d F33N/F36 – integrated catalytic converter + DPF kit including mounting.
• Petrol 420i (184 hp, B48B20A) for F36 Gran Coupé – Euro 6 compliant catalytic converter, 560 mm length.
• Petrol 1.5L (2015-2020) in Coupé/Cabrio F32/F33 models.

Available types and features include:

• Sport Catalytic Converters: Stainless steel, performance-enhancing, e.g. Ragazzon for F32/F33/F36, improving exhaust flow and sound.
• Replacement Tubes for 2nd Catalytic Converter: Larger diameter inox tubes (60 mm) for better performance on specific diesel models.
• Integrated Catalytic Converter + DPF Kits: Compliant with Euro 6 standards, complete with mounting kit and 2-year warranty.
• Standard Petrol Catalytic Converters: Designed to optimise emission reduction on petrol engines (1.5L and others) while meeting legal standards.

Materials are mainly stainless steel (Inox 409), with high-quality monoliths and coatings for durability.

Choosing Euro 6 compliant catalytic converters ensures:

• Legal conformity with vehicle emission standards, particularly important for passing technical inspections.
• Reduction of harmful pollutants to meet environmental protection goals.
• Avoidance of illegal modifications like removal or suppression of DPF (Diesel Particulate Filter), which is prohibited.

Proper certification, such as E24-103R, guarantees that the catalytic converter meets strict technical and environmental requirements.

High-flow sport catalytic converters provide:

• Improved exhaust flow leading to better engine responsiveness and increased power output.
• Enhanced exhaust sound characteristics appreciated by drivers.
• Reduced backpressure which helps turbochargers spool faster (e.g., CTS Turbo designs for N20 engine).

However, users should ensure they select products with appropriate homologation to maintain legality and warranty conditions.

The price of a catalytic converter depends on the model, type (sport, standard, OEM replacement), and materials used. Most are delivered with a 3-year warranty covering usage up to 100,000 km.

For example, high-performance stainless steel converters often add horsepower and offer superior durability. Warranty terms ensure product quality and compliance with manufacturer standards.

• Warranty: 3 years or up to 100,000 km use
• Includes mounting kits for integrated units
• Made from premium stainless steel materials

Prices and delivery times vary, and customers should consider authorised suppliers for guaranteed quality and support.

Before replacement, consider the following points:

• Ensure compatibility with your vehicle’s model year, engine code, and emission standard (Euro 6).
• Use genuine new catalytic converters rather than refurbished parts to guarantee longevity and performance.
• Check for full kits including mounting hardware and certification to comply with legal standards.
• Consider professional installation to ensure correct sensor positioning and exhaust system integrity.
• Avoid bypassing or removing DPF components, which is illegal and damages vehicle compliance.

Refer to your vehicle’s VIN and engine information to verify exact product compatibility.

For detailed technical support, installation instructions, and compatibility verification, you can:

• Contact official distributors or authorised suppliers who provide certified products.
• Use online tools to check part compatibility by VIN or engine model.
• Request installation manuals and technical advice directly via email or customer service channels.
• Benefit from warranty and after-sales support, including part failure analysis if needed.

Always ensure the supplier adheres to legal and environmental standards and offers products manufactured with high-quality stainless steel and certified monolith technology.

Protect your vehicle’s performance and the environment by choosing compliant and reliable catalytic converters for your BMW 4 Series.