AC Schnitzer Carbon Fibre Rear Diffuser/Valance (No Third Brake Light) for BMW 8 Series G14 G15 Coupe/Convertible M Sport - ACS Quad Exhaust Rear Bumper Insert - Gloss Pre-Preg Carbon Fiber Splitter

Sharpen the rear end of your BMW Eight-Series G14 G15 with this AC Schnitzer carbon rear valance, supplied without a centre brake lamp. Crafted from lightweight autoclaved pre-preg carbon, this lower bumper insert delivers a purposeful motorsport look, cleaner airflow around the tail, and an unmistakable ACS finish that complements the car’s lines.

Engineered by one of Germany’s leading BMW tuning houses, this premium carbon tail diffuser elevates both style and function. The deep gloss UV-resistant lacquer showcases the weave while protecting against the elements, and the precision moulding ensures a snug, factory-quality alignment. We have installed this upgrade on customer cars and our own builds, and the feedback on fit, finish and transformation is consistently outstanding.

• AC Schnitzer aero upgrade for BMW 8 Series G14 Coupe and G15 Convertible
• Version without third brake light for a clean, motorsport-inspired look
• Autoclaved pre-preg carbon construction for strength with minimal weight
• High gloss clear coat with UV protection for long-lasting clarity and depth
• Precise contours and aggressive fins for an OEM plus appearance
• Designed to suit ACS quad exit tailpipes, perfect for performance styling builds
• Enhances rear bumper aesthetics while aiding underbody air management

Fitment

• BMW 8 Series G14 and G15 with M Sport exterior package
• Compatible only when paired with the AC Schnitzer quad exit sports exhaust
• This listing is for the no brake light variant

Why choose this upgrade

• Transforms the rear profile with a genuine ACS performance look
• Premium materials, meticulous weave, and a show-quality gloss finish
• Trusted by our customers, proven on MJ Modifications builds

Installation

Professional fitting is recommended for best results. MJ Modifications in Warwickshire can install this component and align it to your bumper and exhaust system. Request a fitting quote by emailing info@mjmodifications.co.uk.

Search-friendly terms

AC Schnitzer rear valance, carbon rear splitter BMW 8 Series, ACS rear bumper insert, carbon fibre lower diffuser, BMW G14 G15 rear undertray, quad exhaust diffuser, BMW 8 Series body kit upgrade, performance styling, OEM plus carbon, premium German tuning.