BMW 3 Series F30 F31 Rear Diffuser / Valance – Matte Stealth Black Twin Exit Dual Outlet/Twin Exhaust Rear Bumper Insert for Saloon & Touring/Estate (2012–2018) | OEM Style Performance Rear Apron Splitter Upgrade | CT Carbon BLAK

Stealth black rear valance with dual outlets for F30 and F31

Give your saloon or touring a sharper, more purposeful rear profile with this stealth black rear bumper insert featuring two exhaust cut-outs. Part of the CT Carbon BLAK range, it delivers an OEM plus look with an aggressive motorsport vibe, ideal for drivers who want clean, understated styling that still stands out.

Vehicle compatibility

Designed for the 2012 to 2018 F30 saloon and F31 estate models that use a dual outlet exhaust layout. If you are unsure about your bumper or tailpipe configuration, drop us a message and we will guide you.

Why choose this rear bumper upgrade

• Matte black finish for a premium, subtle appearance that complements factory trim
• Dual exit design to suit two exhaust outlets, enhancing the stance of the car
• OEM style fit and finish for a tidy, factory look
• Perfect for performance styling, aero aesthetics and an instant rear-end refresh

Real-world results

We have fitted this rear diffuser insert for customers and on our own builds. Feedback has been consistently positive, praising the sleek finish, tidy panel gaps and the way it transforms the rear of the car without being over the top.

Fitting and support

Professional installation recommended. Book fitting with MJ Modifications in Warwickshire. Request a quote: info@mjmodifications.co.uk.

Search-friendly terms

Rear bumper diffuser F30, rear valance F31, dual exit rear insert, two outlet rear apron, performance rear splitter, stealth black rear trim, BLAK range, F30 saloon rear bumper upgrade, F31 touring rear styling, OEM plus aero, aftermarket rear diffuser UK.

Model years

2012, 2013, 2014, 2015, 2016, 2017, 2018.