BMW 3 Series F30 F31 2012-2018 Matte Black Side Skirts / Side Skirt Extensions, Sill Blades & Side Splitters - M Performance/MP Style, M Sport - Saloon Touring - CT Carbon BLAK | Rocker Panel Covers / Aero Side Lips - Pre-LCI & LCI - Body Kit Upgrade

CT Carbon BLAK Range Side Skirt Extensions for BMW 3 Series F30 and F31

Transform the profile of your 3 Series with these aggressive matte black sill extensions from the CT Carbon BLAK range. Designed for a sharp, M Performance inspired look, these side blades deliver instant street presence and a cohesive body styling upgrade without shouting for attention.

Compatible Models

BMW 3 Series 2012 to 2018:

• F30 Saloon
• F31 Touring
• Pre-LCI and LCI

Why enthusiasts choose these side skirt extensions

• Matte black finish for an OEM plus aesthetic that complements M Sport trims and de-chromed builds
• Clean, M Performance look without the premium price tag
• Contours tailored for the F30 and F31 chassis for a neat, confident fit
• Pairs perfectly with front splitters and rear diffusers for a full aero kit vibe

What you will notice

• Lower, wider visual stance from the side profile
• Sportier lines that tie in with factory bumpers and side sills
• Subtle but impactful styling that works on both daily drivers and show builds

Trusted by our customers

We have fitted these in-house and the feedback has been consistently positive. Customers love the sleek finish, the way the lines flow with the bodywork, and the easy way it elevates the whole car.

Fitting service

Professional installation is recommended for the best alignment and finish. Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Search terms people use for this upgrade

BMW F30 side skirt extensions, F31 Touring sill extensions, 3 Series rocker panel covers, M Sport style side splitters, black side blades, BMW 3 Series body kit upgrade, F30 aero side lips, F31 side skirts matte black, M Performance look skirts, BMW 3 Series sill blades 2012 2013 2014 2015 2016 2017 2018.

Give your BMW a stronger side profile and a purposeful stance with these matte black side skirt extensions from CT Carbon’s BLAK range.