Rear Side Splitters V.4 for BMW 1 F40 M-Pack/ M135i fits: BMW 1 F40 M-Pack 2019 -BMW 1 F40 M135i 2019 -Fits only: BM-1-F40-MPACK-RS2. COMPLETE SET CONTAINS: SPLITTERS (LEFT + RIGHT) The high-end Maxton Design tuning elements will surely be to the liking of even the most fastidious clients who want their tuning to be functional, but also eye-catching and stylish at the same time. This Polish company has been participating in the market since 2006 and has been focusing on designing and making high-grade diffusers, splitters, spoilers, bumpers, and side skirts. All of these products are certified with the TUV MATERIALGUTACHTEN. The Polish brand is one of the most significant competitors among the producers of optical vehicle tuning on the international market. BMW 1 F40 M-Pack/M135I is one of the models that we can offer items for, and these V.4 rear side splitters are one of them. What is special about the V.4 rear side splitters for