Skip to product information
1 of 2

Performance M

Maxton Design Side Skirts for BMW Z4 E86 Coupe 2005-2009 - ABS Sill/Rocker Extensions, Side Splitters & Skirt Diffusers, Aero Side Blades - Body Kit Ground Effects - Pair incl. Fitting Hardware

Maxton Design Side Skirts for BMW Z4 E86 Coupe 2005-2009 - ABS Sill/Rocker Extensions, Side Splitters & Skirt Diffusers, Aero Side Blades - Body Kit Ground Effects - Pair incl. Fitting Hardware

Regular price £149.00
Regular price Sale price £149.00
Sale Sold out
Shipping calculated at checkout.

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.

BMW Z4 E86 Coupe 2005 to 2009 Racing Sill Extensions by Maxton Design

Give your BMW Z4 E86 Coupe a sharper, lower stance with Maxton Design racing style sill extensions. These aero side blades sit beneath the factory lower sills to create a wider, more aggressive silhouette that complements the Z4’s body lines. Manufactured from automotive-grade ABS, they are lightweight, strong and impact resistant, making them ideal for daily driving, show builds and track-inspired projects alike.

Highlights

  • Purpose-made for BMW Z4 Coupe E86 model years 2005, 2006, 2007, 2008 and 2009
  • Brand: Maxton Design
  • Supplied as a pair with fixings hardware
  • Automotive ABS construction for durability and flexibility
  • Same type of material used for OE exterior trims and bumpers
  • TUV MATERIALGUTACHTEN certified material
  • Motorsport-inspired look that visually lowers the car and enhances road presence

Why enthusiasts choose these Z4 E86 sill extensions

We have supplied and fitted these Maxton Design sill blades for numerous Z4 builds and the feedback is consistently positive. Owners love the clean fit, the quality feel of the ABS material and the instant transformation in side profile. It is a simple bolt-on styling upgrade that finishes the rocker area, pairs well with front splitters and rear diffusers, and ties together OEM and aftermarket wheels or suspension drops.

What you get

  • 1 x pair of Maxton Design racing style sill extensions for BMW Z4 E86 Coupe
  • Mounting kit included

Material information

ABS plastic is engineered for exterior automotive use. It offers the right mix of strength, flexibility and impact resistance for UK roads. The material used here is TUV MATERIALGUTACHTEN certified, reflecting high manufacturing standards.

Compatibility and search terms

Designed for the BMW Z4 E86 Coupe only. Popular search phrases include BMW Z4 E86 aero side blades, Z4 E86 rocker extensions, Z4 Coupe sill blades, BMW Z4 ground effects, Z4 side splitters, BMW Z4 E86 body kit add-ons, Z4 side sill extensions, Maxton Z4 Coupe skirts, BMW Z4 E86 styling parts, BMW Z4 3.0si Coupe aero, 2005 2006 2007 2008 2009 Z4 Coupe accessories.

Fitting and support

Professional installation recommended for the best finish. MJ Modifications in Warwickshire offers fitting services. Request a quote at info@mjmodifications.co.uk.

Upgrade your BMW Z4 E86 Coupe with these Maxton Design sill extensions for a purposeful, race-inspired look that works on the street and at shows alike.

View full details