BMW Carbon Fiber Front Lips & Splitters
77 products
Our carbon fiber front lips and splitters start with the BMW G80 M3 and G82/G83 M4, then go on to other M cars, Audi and Mercedes-AMG. On the G8x cars you can pick one of our own designs (the SPL1 OEM++ or the one-piece SPL2), a CSL, CS or MP-style lip, the one-piece V3, or OEM-style replacement corners.
We also design splitters for the G87 M2, the X3 M and X4 M (in separate LCI and pre-LCI versions), the 2025+ Audi RS3 and the Audi Q7/SQ7. Other lips here fit the M5, X5 M, X6 M, F87 M2 and F80/F82, older 3, 4 and 5 Series M Sport cars, the RS6/RS7 C8 and two C63 generations. Most newer listings are pre-preg dry carbon. Older ones describe theirs as real carbon fiber.
Lips buying guide
Lips, splitters, corners and kits
Strictly speaking, a lip follows the bottom edge of the bumper, and a splitter sits flatter and reaches further forward. Our listings use the two words loosely and often together, so go by the photos and description more than the name. The bigger difference is what's in the box. One-piece designs such as the SPL2, the V3 and the RS3 S1 Pro run from corner to corner. Three-piece sets, like the F80/F82 Performance-style kit, the C63 Edition 1 style and the 8 Series AC style, go on in sections. Corner splitters for the F87 M2, F80 M3 and F90 M5 cover only the ends of the bumper.
Choosing a carbon fiber front lip for the G80 M3 and G82 M4
Start by deciding how far you want to move from the factory look. The SPL1 OEM++ and the CSL-style lip stay closest to BMW's shapes and fit the original screw holes with no drilling. The CS and MP styles follow other factory-inspired outlines. The SPL2, a single pre-preg piece with a layered face, moves furthest from the factory look. The V3 and the OEM-style corners work differently from the rest. The V3 mounts beneath the factory gloss-black corners, while the OEM-style corners replace the corner pieces and come in versions for 2021+ and 2023+ cars. You can compare them under G80 M3 front lips or G82 M4 front lips.
G87 M2, X3 M and other BMWs
The G87 M2 has two Unit 17 splitters. The SPL1 is a one-piece design with vents molded in, and it uses OEM mounting with no drilling. The one-piece SPL2 has a deeper front ledge and can be paint-matched on request. On the X3 M and X4 M, our LCI splitter (2022 to 2024) and our pre-LCI splitter don't interchange, and the SQ-style LCI lips are a third option. The F90 M5 and F95 X5 M lips also come in separate LCI and pre-LCI versions. The F87 M2 Competition and CS take their own splitters, different from the original M2's. Most 3, 4 and 5 Series, X3/X4, X5, X6 and 8 Series splitters are listed for M Sport bumpers only.
Audi and Mercedes-AMG
The Audi RS3 8Y has separate splitters for the pre-facelift car and the 2025+ 8Y.5 facelift, plus our S1 Pro lip for the facelift sedan and Sportback. The pre-facelift S3 8Y, the S5 B9 and the RS6/RS7 C8 have lips too. For the Q7/SQ7 4M, we scanned the car and designed our own three-piece splitter. The W205 C63 has Brabus-style, Edition 1-style and pre-LCI dry carbon options, and we also have splitters for the W204 C63, the facelift W205 C43 and C-Class, and the CLA45.
How the lips mount
Mounting varies from part to part even more than the styling does. The X3 M/X4 M splitters come with pre-drilled holes and self-tapping screws, and the SQ-style X3 M lips use factory hardware plus 3M tape. Many older listings for F-series BMWs, the C63 and the CLA45 say drilling is required, and the F80 GTS-style lip is big enough that its listing suggests extra screws. Test-fit any lip before you paint or drill. We can't take back an installed lip, but if one doesn't fit the car on its product page, our fitment guarantee covers it as long as you contact us first.
Frequently asked questions
What's the difference between the SPL1 and SPL2?
The SPL1 gives a factory-plus look, and the SPL2 is the one to pick if you want to stand apart. Both are our own designs in pre-preg dry carbon for the G80 M3 and G82/G83 M4. The SPL1 OEM++ follows the outline of BMW's M Performance splitter, but in place of BMW's three small center fins it has one larger blade that reaches slightly past the bumper line, and its corners are reshaped to look wider. The SPL2 is a one-piece lip with a multi-level face made for paint accents. It mounts with factory hardware plus optional pre-drilled support points.
Which front lips are Unit 17 designs?
Our own designs are the SPL1 and SPL2 for the G80 M3 and G82/G83 M4, the SPL1 and SPL2 for the G87 M2, the LCI and pre-LCI splitters for the X3 M and X4 M, the S1 Pro lip for the 2025+ Audi RS3, and the Q7/SQ7 splitter. We design them in-house, and only Unit 17 sells them. Every in-house part is listed under Unit17 Exclusives.
Does my 3 Series, 4 Series or X5 need the M Sport bumper?
For most listings here, yes. The splitters for the F30/F31 and G20 3 Series, F32/F33/F36 4 Series, G30/G31 5 Series, F22 2 Series, G01/G02 X3/X4, F15 X5, F16 X6 and 8 Series are made for the M Sport front bumper, and a lip shaped for that bumper won't line up on a standard one. Check the product title and fitment line. If you're not sure which bumper your car has, text a photo to 609-525-4865.
Can I paint-match or accent a carbon front lip?
On some, yes. The G87 M2 SPL2 can be paint-matched on request, and the G80/G82 SPL2 was designed with a multi-level face so you can pick out sections in a contrasting color. Paint only after a test-fit, because a painted part can't be returned. Most other listings describe a gloss clear coat, so ask before ordering if you want a different finish.
What comes in a three-piece front splitter?
The pieces depend on the car. The F80 M3/F82 M4 Performance-style kit is a front lip plus two lower splitters. The 8 Series AC-style splitter has a corner piece under each side of the bumper and a lower piece that runs between them. The Q7/SQ7 and RS6/RS7 C8 splitters and the C63 Edition 1 style also come in three pieces. The package section of each listing shows exactly what's included.