Often overlooked, side skirts can be the final touch that can pull an entire build together. The WBS-AERO carbon fiber side skirt kit is designed to accent the factory body of the F3X 4 series while flowing perfectly with the other carbon fiber pieces available for this platform. Featuring real 2X2 pattern carbon fiber construction and a design that was created to look great and increase downforce, this side skirt kit is everything your Bimmer needs and more.
YEAR: 2014-2020
MAKE: F32 F33 F36 4-SERIES
MODEL: 428i, 430i, 435, 440i [M SPORT]
POSITION: SIDE SKIRT EXTENSIONS
MATERIAL: 2X2 3D CARBON FIBER
BRAND: WIDEBODY.STORE
MANUFACTURE: WBS
INSTALLATION TYPE: DIRECT FIT USING SCREWS + 3M TAPE [INCLUDED]
Born to revolutionize the world of modification solutions.
I purchased a ducktail spoiler and front lip from WBS, and I couldn't be happier with the experience. The quality of both products is amazing, and the customer service was absolutely first-rate.
I also chose to have both parts installed, and the work was completed to an exceptionally high standard. Everything fits perfectly and looks fantastic. I highly recommend WBS and would definitely use them again in the future!
Review written on Google Maps
★★★★★
Craig MacLeod
May 15, 2026
Can’t say enough about the customer service from Emad and quality of products . Can’t imagine how anyone could justify going anywhere else. Does wonders for the look of the M cars and very competitive pricing. Absolute 5 star total experience! Absolutely top notch fit and finish at least as good as BMW’s limited carbon fibre.