BMW 3 Series F30/F31 Rear Diffuser Gloss Black Twin Exit Dual Exhaust/Outlet Valance/Rear Bumper Insert - M Performance/M Sport Style - Fits 2013-2019 Saloon & Touring - BLAK by CT Carbon

Transform the rear of your BMW 3 Series with a premium twin‑outlet look

Give your F30 saloon or F31 touring a serious OEM‑plus upgrade with this piano black rear bumper diffuser from the CT Carbon BLAK range. The aggressive, M Performance inspired design delivers a wider, lower stance and a clean twin‑exit appearance that looks at home on daily drivers and show cars alike.

Compatible chassis: BMW 3 Series F30 and F31, model years 2013 to 2019, including LCI. Perfect for enthusiasts wanting a factory‑style fit and a deep, high‑gloss finish that ties in with Shadowline trims and black styling packs.

Why enthusiasts choose this upgrade

• High‑gloss piano black finish for a premium, stealth look
• Twin outlet styling for a sporty, performance‑led rear end
• M Performance inspired design that complements factory body lines
• Designed for the F30/F31 rear bumper for a clean, OE‑style install
• Great visual upgrade for 320i, 328i, 330i, 335i, 340i, 320d, 330d and similar twin‑exit setups

Real‑world results

We have fitted this upgrade in‑house and feedback has been excellent. Customers love the fit and finish, the deep gloss, and the way it instantly modernises the back end of the car. It pairs perfectly with black exhaust tips, rear splitters, boot spoilers and de‑chromed trims.

Ideal search terms for this product

BMW F30 rear diffuser, F31 rear valance, 3 Series rear bumper insert, piano black rear diffuser, twin outlet diffuser, M Performance inspired rear valance, F30/F31 styling, BMW 3 Series rear lip, sport rear splitter, high gloss black diffuser, OEM‑plus rear diffuser 2013‑2019, LCI rear diffuser F30, touring rear diffuser F31, twin exit rear bumper trim.

Fitting

Professional installation available at MJ Modifications, Warwickshire. To book or request a fitting quote, email info@mjmodifications.co.uk.

Note: Please confirm your exhaust layout and rear bumper type before ordering to ensure compatibility with your specific setup.