BMW G82/G83 M4 Front Lips & Splitters
6 products
Carbon front splitters and lips for the BMW G82 M4 coupe and G83 convertible, including Unit 17's own SPL2 and SPL1 OEM++.
The M4 shares its front fascia with the sedan, so every G82 M4 front splitter here also carries G80 M3 fitment, and each covers the convertible as well as the coupe. What sets the lips apart is their shape and how much of the factory gloss black stays visible.
BMW G82/G83 M4 Front Lips & Splitters buying guide
Choosing a G82 M4 front splitter
Start with the corners. From the factory, the lower bumper ends in gloss-black corner pieces at each side. The V3 is a one-piece lip that tucks beneath them and leaves them showing. The OEM-style corner replacement does the opposite: it swaps only those pieces for pre-preg carbon, in versions for 2021-on and 2023-on cars, so confirm yours with us. The rest are full lips in dry carbon, and you pick by shape.
SPL2 or SPL1 OEM++
These two are our own designs and aren't sold anywhere else. The SPL2 is a single pre-preg piece with a layered face, so you can pick out one level in a body or accent color and leave the rest as bare carbon. Its 2x2 weave sits under a 4K clear coat, and it fits on the factory hardware, with pre-drilled points for added support should you want them. The SPL1 OEM++ reads closer to stock: it reworks BMW's M Performance splitter with one center blade instead of three small fins and corners shaped to look wider, and it goes on with the original screw holes.
The CSL connection
BMW's own M4 CSL came with a carbon splitter along the lower edge of its front apron, plus carbon inserts in the air curtains at each end. The CSL-style lip gives a standard coupe or convertible that kind of line in pre-preg carbon with a gloss finish, and it fits the stock mounting with no drilling. It pairs with the CSL-style grille on the G82 M4 grilles page. For a quieter change, the MP style keeps to the M Performance shape in dry pre-preg.
All of these are listed from 2021 on for the G82/G83, a range our fitment data counts as including the 2025 facelift. Test-fit before paint or installation: if a lip doesn't fit the car on its product page, tell us before installing and our fitment guarantee covers return shipping. More coupe parts are on the G82/G83 M4 page.
Frequently asked questions
Do these front splitters fit the G83 M4 convertible?
Yes. Each one is listed for the G82/G83 M4, and the SPL1 listing names the G83 M4 Convertible directly. Choose on style and mounting, then check the fitment line on the product page before you order.
Can I paint part of the SPL2 on my M4?
Yes, that's what its multi-level face is for. The stepped layers let you pick out one of them in your body color or an accent shade while the rest stays carbon. Test-fit the lip before any paint goes on: once it's painted, it can't be sent back.
What's the difference between the V3 and the SPL2?
Both are one piece, but they sit differently. The V3 mounts under the factory gloss-black corners and leaves them visible, and it isn't one of our in-house designs. The SPL2 is a Unit 17 design with a stepped face for paint accents, mounted on factory hardware with optional extra support points.