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

For the BMW 4 Series F32 (Coupe), F33 (Convertible), and F36 (Gran Coupe), produced from 2013 to 2021, stainless steel sport exhausts are popular. These focus on improved sound, distinctive styling such as quadruple or round tips, and sometimes enhanced performance. They are compatible with both diesel (420d, 425d, 435d) and petrol engines (420i, 428i, 435i).

The main components include:

• Downpipes and turbo downpipes: stainless steel parts improving gas flow but usually not road legal and often requiring ECU remapping.
• Active Sound Systems: electronic exhausts simulating V8 or V6 sound, plug & play with original controls, suitable even for diesel engines, and compatible with road tests.
• Sport rear silencers/mufflers: stainless steel or premium materials with various tip styles such as dual round or quad, offering aggressive tone and premium look.

These exhausts often replace the mid to rear sections and sometimes require cutting the original pipe.

Compatibility depends on model specifics such as engine code (e.g., N20, N26, B47) and chassis number. Common compatible engines include diesel 420d, 425d, 435d and petrol 420i, 428i, 435i variants. For example:

• 420d / 435d M-Sport versions support some quad exhaust styling.
• 428i and 420i engines support round twin exhaust tips.
• BMW Performance exhaust systems are available mainly for 435i Gran Coupe (F36).

Always check seller details or consult professional installers for exact fitment verification.

Many sport exhaust systems are bolt-on, requiring no major modifications, but some downpipe and turbo downpipe parts may require cutting or custom fitting. A professional or workshop installation is recommended to ensure:

• Proper integration with original parts
• Compatibility with ECU tuning or remapping if necessary
• Maintaining warranty and legal compliance where applicable

Installation shops knowledgeable in BMW systems are available to support these upgrades.

Downpipes and turbo downpipes are generally not homologated for road use and may affect emissions compliance. However, Active Sound Systems designed to simulate engine sound are compliant with roadworthiness tests (MOT / CT) as they use factory controls and sensors.

• Check local regulations regarding aftermarket exhaust modifications.
• AdBlue compatibility and emissions standards should be considered, especially for diesel engines.
• Ensure any replacement catalytic converter or DPF is approved and meets European standards.

Consult with professionals prior to purchase to ensure legal usage.

Key advantages include:

• Enhanced, aggressive exhaust sound – some simulate V8/V6 tones.
• Improved exhaust gas flow which can subtly increase performance and torque.
• Premium styling upgrades such as gloss black or carbon fibre-look tips, quad or twin round exhaust exits.
• High-quality stainless steel construction for durability and corrosion resistance.
• Maintained or improved vehicle warranty when sourced from reputable manufacturers and installed professionally.

This upgrade boosts both driving enjoyment and visual appeal.

Exhausts are predominantly made from high-grade stainless steel (INOX), ensuring resistance to corrosion and high temperature. Well-engineered monoliths and precision manufacturing ensure longevity and optimal flow characteristics. Key points:

• Stainless steel construction with polished or black gloss finish options.
• Seamless design and premium welds for durability.
• Some systems feature precision valve control for sound tuning.
• OEM-like fitment and appearance for seamless integration with vehicle styling.

These materials support both aesthetics and performance gains.

It is advisable to purchase exhaust components from specialist dealers or directly from manufacturers who provide warranty and professional technical support. For example:

• Look for brands offering a minimum 3-year warranty on stainless steel exhaust parts.
• Use authorized workshops for expert installation and advice.
• Check product compatibility and certification compliance before purchase.

Quality assurance and service ensure a smooth upgrade experience and performance reliability.

For any questions related to product range, installation, or legal compliance, contact the dealer or manufacturer directly for expert guidance.