AC Schnitzer Quad Exit Exhaust 90mm Chrome Tips for BMW 6 Series F06 Gran Coupe 640d – Back Box/Rear Silencer Muffler, Quad Tailpipe Conversion, Diesel Performance Upgrade

AC Schnitzer quad exit rear system for BMW 6 Series F06 Gran Coupe 640d

Transform your BMW 6 Series Gran Coupe with the AC Schnitzer quad exit rear system. This premium upgrade delivers a deeper, cleaner tone with a purposeful look thanks to four beautifully finished 90 mm outlets, two on each side, complete with discreetly etched AC Schnitzer logos. It is the same rear box used on the dual version, with the petrol applications using the export variant, but paired here with quad tips for a more aggressive, high-end finish.

We have fitted these at MJ Modifications and the results speak for themselves. Customers love the refined sound, the quality of the finish and the way the quad layout fills the rear of the F06 perfectly. If you want a BMW 640d exhaust upgrade that looks factory-plus and feels genuinely special, this is it.

Why enthusiasts choose this upgrade

• Quad 90 mm tailpipe set - two per side for a balanced, motorsport-inspired look
• High gloss chrome finish with laser-etched branding for a premium appearance
• Clean, sporty soundtrack without drone for everyday driving
• Direct integration with AC Schnitzer styling parts for precise fitment
• Designed specifically for the F06 Gran Coupe platform

Compatibility and required bodywork

• SE and Sport trims - requires the AC Schnitzer rear skirt to fit
• M Sport trim - requires the AC Schnitzer carbon fibre rear diffuser
• Not compatible with the factory lower valance on any trim level
• Please select the correct engine option when ordering
• Petrol models use the export rear silencer version

Ideal search terms

BMW F06 640d quad tailpipe upgrade, BMW 6 Series Gran Coupe rear box, 640d back box with quad tips, BMW diesel performance exhaust, AC Schnitzer tailpipe kit, BMW F06 quad outlet muffler, premium German tuning parts for 6 Series, Gran Coupe quad tip conversion, chrome tailpipes 90 mm, BMW 640d exhaust sound upgrade.

Professional fitting

Want it installed perfectly first time? Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a tailored quote and lead time.

Upgrade your 6 Series with the AC Schnitzer quad exit look and enjoy a sharper sound and stunning rear-end presence on your BMW F06 640d.