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BLAK BY CT

BMW 4 Series F32 F33 F36 Rear Diffuser Gloss Piano Black Dual Left Exit Exhaust Valance 2013-2020 - Rear Bumper Lower Trim Splitter for Left-Side Twin Tip - Coupe Convertible Gran Coupe - CT Carbon BLAK 420i 428i 430i 435i 440i

BMW 4 Series F32 F33 F36 Rear Diffuser Gloss Piano Black Dual Left Exit Exhaust Valance 2013-2020 - Rear Bumper Lower Trim Splitter for Left-Side Twin Tip - Coupe Convertible Gran Coupe - CT Carbon BLAK 420i 428i 430i 435i 440i

£69.00
£69.00
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Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.

Upgrade the rear of your BMW 4 Series with a high-gloss piano black dual outlet left-side rear diffuser

Give your BMW 4 Series a sharper, sportier finish with this CT Carbon BLAK range rear lower bumper diffuser in a deep, mirror black finish. Designed for models with the twin tips on the left side, this rear valance delivers an aggressive OEM plus look while complementing factory body lines.

Compatibility: BMW 4 Series F32 coupé, F33 convertible, F36 Gran Coupé, model years 2013 to 2020, for vehicles with a left-hand dual outlet exhaust layout.

  • High-gloss piano black rear diffuser for a premium, factory-style appearance
  • Left-hand dual outlet design to suit twin tip systems on the left side
  • Purpose-made styling piece for BMW F32, F33 and F36 4 Series 2013 to 2020
  • Transforms the rear profile with a performance-inspired finish
  • Durable, quality construction from CT Carbon’s BLAK range

We have installed this part on customer cars in our own workshop and the feedback has been excellent. Fit and finish look superb, the gloss black surface pairs perfectly with Shadowline trim and the overall result is a cleaner, more purposeful rear end.

Why choose this rear valance

If you are searching for a BMW 4 Series rear bumper diffuser in piano black, a F32 rear valance with dual outlet on the left, a F33 rear lower trim in gloss black, or a F36 Gran Coupé rear diffuser for twin left tips, this is the styling upgrade that delivers instant visual impact. Ideal for enthusiasts chasing an OEM plus aesthetic without going over the top.

Fitting and support

Professional installation is recommended for the best alignment and finish. MJ Modifications offers fitting at our Warwickshire workshop. Request a fitting quote by emailing info@mjmodifications.co.uk.

Common search terms

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