Maxton Design V.1 Gloss Black Rocker Extensions for BMW 1 Series F20 M135i M140i M Sport 5 Door 2011-2019

Give your BMW 1 Series F20 a sharper, lower look with these Maxton Design V.1 gloss black rocker extensions. Precision made for the 5 door M Sport chassis including M135i and M140i, this pair of side aero blades visually lowers the car, cleans up the sill line and ties your exterior styling together for a purposeful, OE-plus finish.

We run these on customer cars at MJ Modifications and the feedback is consistently excellent. Fitment is vehicle specific, the finish is beautifully smooth in high gloss black and the transformation to the side profile is immediate. If you are searching for BMW F20 rocker extensions, sill blades, side spoilers, ground effects or side skirt add-ons for your M Pack model, this is the set you want.

Why you will love them

• Made for BMW 1 Series F20 5 door M Sport including M135i and M140i - model years 2011 to 2019
• High gloss black finish for a premium look with no painting required
• Enhances stance and side silhouette - perfect with a front splitter and rear diffuser
• Durable ABS construction designed for exterior styling parts
• Supplied as a pair with fixings and fitting guide for a straightforward installation

Compatibility

Fits BMW 1 Series F20 5 door M Sport only, including M135i and M140i, 2011-2019.

What you receive

• Pair of Maxton Design V.1 gloss black rocker panel extensions
• Mounting kit
• Installation manual

Material and finish

Manufactured from ABS plastic chosen for strength and flexibility in exterior aero parts. Finished in gloss black for a clean, ready-to-fit appearance that complements factory trims and other styling upgrades.

Protective film

Each piece arrives vacuum wrapped with a protective layer to help prevent marks in transit. Remove this film to reveal the fresh gloss surface.

Installation

Fitting manual: Side Skirt Diffusers Installation Manual

Professional fitting recommended. For expert installation, contact MJ Modifications in Warwickshire for a quote: info@mjmodifications.co.uk

Why buy from MJ Modifications

• UK specialists in performance styling and aero
• Tried and tested on customer vehicles with great feedback on fit and finish
• Friendly advice and in-house fitting available

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