AC Schnitzer Twin Exit Axle-Back Exhaust (Rear Silencer/Back Box) for BMW 4 Series Gran Coupe F36 435i 440i (N55/B58) - Stainless Steel with 90mm Ceramic Black Tips - Sports Muffler Upgrade / Twin Exit Conversion fits SE, Sport & M Sport

Transform the look and tone of your BMW F36 Gran Coupe with this premium AC Schnitzer twin-exit rear silencer upgrade. Crafted from high grade stainless steel and finished with stealthy ceramic coated black outlets, this performance back box delivers a deeper, richer soundtrack and meaningful weight reduction compared with the standard unit. The twin 90 mm tips sit one per side for a perfectly balanced, motorsport inspired stance.

Developed by AC Schnitzer, Germany’s renowned BMW tuning specialist, this axle-back system is the ideal sound and style upgrade for the 4 Series Gran Coupe owner who wants subtle aggression, superb build quality and long term durability. It is warranty friendly, looks fantastic and sounds just right without being intrusive.

• Stainless steel rear silencer for durability and corrosion resistance
• Two 90 mm ceramic black tailpipes for a stealth, OE-plus appearance
• Twin exit layout for a sportier, symmetrical rear profile
• Refined performance tone with improved presence over factory exhaust
• Weight saving versus the stock rear box
• Includes dark grey dual outlet rear skirt insert where required to avoid cutting the original valance

Fitment and options

Designed for the BMW 4 Series Gran Coupe F36. Suitable for most M Sport models, and for 435i and 440i across SE, Sport and M Sport trims. Please select your exact vehicle from the options above to see the correct pricing and configuration.

Why choose this upgrade

• Premium German engineering from AC Schnitzer
• Ceramic coated black tips for outstanding durability and low maintenance
• Perfect for enthusiasts seeking a sports muffler, axle back exhaust or twin exit conversion that enhances sound and styling in one package

Tried and trusted by MJ Modifications

We have fitted this system for customers and in our own projects and feedback has been consistently excellent on sound quality, finish and fit.

Professional installation

Want it fitted by specialists who know BMW platforms inside out? Book installation with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a tailored fitting quote and availability.

Note: Prices vary by vehicle variant. Please choose the correct model from the dropdown before ordering.