Maxton Design's gloss black V1 rear side splitters for the 2020+ BMW G22 and G23 4 Series make the car appear wider, lower, and more aggressive from the rear. The V1 design is very clean and simple, carrying the line from Maxton's gloss black side skirts into the rear diffuser. The premium gloss black finish is very sleek and the lacquer is highly resistant to corrosion for long-term style.