Maxton Design Gloss Black Side Skirts / Extensions / Diffusers for BMW 3 Series E90 Saloon (Sedan) 2004–2008 Pre-LCI – Side Splitters / Sill Extensions / Rocker Panel Side Blades – OEM Fit Body Kit Styling

Transform the stance of your BMW 3 Series E90 saloon with these high gloss black side skirt extensions from Maxton Design. Sleek, sporty and purpose-built for the 2004 to 2008 E90, they add instant road presence and cleaner airflow along the sills. Perfect for enthusiasts chasing premium exterior styling, subtle aero and OE-quality fitment.

Engineered from durable ABS for everyday use, these side blades give your rocker panels a sharper, lower look without compromising practicality. We have fitted these on customer cars and our own builds and the feedback has been fantastic – great fit, rich gloss finish and a noticeable visual drop along the side profile.

Why drivers choose these E90 side skirt extensions

• High gloss black finish for a premium, factory-plus appearance
• ABS construction for strength, impact resistance and flexibility
• Precise, model-specific design for the 2004 to 2008 BMW 3 Series E90
• Improves side profile with a lower, cleaner line and subtle aero effect
• Supplied with hardware and instructions for a straightforward bolt-on upgrade
• Shipped with a protective film to keep the surface pristine until installation

Compatibility

Designed for BMW 3 Series E90 saloon 2004 to 2008.

What’s in the box

• Pair of side skirt extensions
• Fitting hardware
• Installation guide

Installation guide link: Download here

Professional fitting available

For the best result, we recommend professional installation. Book fitting with MJ Modifications in Warwickshire. Request a quote: info@mjmodifications.co.uk.

Search-friendly terms customers use

BMW E90 side skirt extensions, 3 Series sill extensions, gloss black rocker panel splitters, E90 side blades, BMW saloon body kit side skirts, E90 aero kit, exterior styling, BMW 3 Series 2004 2005 2006 2007 2008, side sill diffusers, performance styling, bolt-on side skirts, ABS side extensions, Maxton E90 styling.

Note: Remove the protective wrap after fitting to reveal the flawless gloss surface. As with all styling parts, professional fitting ensures perfect alignment and long-term durability.