AC Schnitzer Axle-Back Exhaust Twin 90mm Ceramic Black Tips for BMW 4 Series F32/F33 435i 440i B58/N55 (Coupe/Convertible, 2013-2020) – Performance Rear Silencer / Back Box / Muffler, Dual Exit

Upgrade the soundtrack and styling of your BMW 4 Series

Give your F32 coupé or F33 convertible the twin-exit look and tone it deserves with this AC Schnitzer axle-back upgrade. Engineered from premium-grade stainless steel and finished with ceramic-coated black 90 mm tips carrying subtle AC Schnitzer branding, this high-quality rear box delivers a deeper, sportier note and a cleaner, more aggressive appearance without compromising everyday usability.

Why enthusiasts choose this system

• Striking twin 90 mm black ceramic outlets with laser-etched AC Schnitzer logo for a purposeful OEM-plus finish.
• Robust stainless construction for long-term durability and corrosion resistance.
• Lighter than the stock rear box for a useful weight saving at the tail of the car.
• Refined performance tone that enhances character while remaining perfectly road-friendly.
• Includes a replacement dual-outlet rear skirt insert in dark grey where required, so there is no need to cut your original trim.
• Dealer-friendly upgrade that complements manufacturer servicing and everyday driving.
• Chrome tailpipe option also available if you prefer a polished look.

Compatibility

Designed for BMW 4 Series M Sport models:

• F32 435i and 440i – all versions
• F33 435i and 440i – all versions

Fits both coupé and convertible.

Note: Not suitable with the BMW M Performance rear diffuser.

What is supplied

• AC Schnitzer twin-outlet rear silencer with ceramic black 90 mm tailpipes
• Model-specific dual-outlet rear skirt insert in dark grey where required

Pricing varies by vehicle variant. Please select your exact model from the options above to see the correct price.

Fitting and support

We supply and install at MJ Modifications, Warwickshire. For a professional fitting service and a tailored quote, email info@mjmodifications.co.uk.

Proven quality

We have fitted this system for multiple customers and the feedback is consistently excellent – superb build quality, a tasteful performance tone, and a premium factory-plus appearance.

Upgrade your 4 Series with a premium AC Schnitzer rear section for a cleaner look, a sportier voice, and trusted German engineering.