F97/F98 X3M/X4M (LCI)
25 products
We carry X3M LCI carbon fiber parts for the facelifted BMW X3 M and X4 M (F97/F98 LCI, 2022 model year on), including front splitters, air vent trims, side skirts, rear diffusers and a vented hood. The front-end parts are made for the LCI bumper, which has a different shape from the 2020–2021 cars.
We designed our LCI front splitter in-house from a 3D scan of the car, and it comes with pre-drilled mounting holes and hardware. Our own X3 M rear spoiler, side skirt extensions and 3-piece diffuser are here too, along with SQ-style lips, canards and diffusers, among them X4 M diffusers with and without a brake light. Parts come with a 1-year warranty and our fitment guarantee.
BMW F97/F98 X3M/X4M (LCI) buying guide
Check whether your car is an LCI before you order
BMW facelifted the X3 M and X4 M for the 2022 model year. The LCI has a reshaped front bumper with L-shaped corner intakes, slimmer headlights and new taillights. Inside, it gets a larger 12.3-inch center screen and the gear selector from the M3. Front splitters, lips, canards and vent trims are cut for one bumper or the other, so a pre-LCI splitter won't fit a 2022 or later car. If your car is a 2020 or 2021 model, use the X3M/X4M pre-LCI page instead.
Unit 17 designs for the X3 M and X4 M
We developed our LCI front splitter from a 3D scan of the car in our shop. It ships with pre-drilled holes, self-tapping screws and the installation hardware. The side skirt extensions fit LCI and pre-LCI cars and stop just short of the factory underglow light, so the light still works. The rear spoiler fits the X3 M only, pre-LCI or LCI, and isn't made for the X4 M or a non-M X3. The 3-piece diffuser with rear corner splitters is also an X3 M part. Our X3M/X4M splitter article explains why owners start at the front.
Which parts fit the X3 M, the X4 M or both
Most front and side parts are listed for both the X3 M and the X4 M. Rear parts aren't shared: the X4 M's sloping tailgate and rear bumper need their own spoiler and diffusers, so check that a rear part names your model. The SQ-style X4 M diffuser comes with or without an integrated brake light. See all LCI rear diffusers.
Fitting and finish
Most parts here are pre-preg dry carbon with a UV-resistant gloss clear coat. Some mount on factory points and others with screws or 3M tape. The SQ-style air inlets need the front bumper removed. The vented hood fits LCI and pre-LCI cars. As with any aftermarket carbon hood, have a professional fit it and expect some minor adjustment. Test-fit every part before you paint or install it.
Shipping and returns
Most orders ship within 5 business days unless the product page shows a longer lead time. Parts marked Coming soon don't have a ship date yet. If a part doesn't fit the car listed on its product page, contact us before you install it and we'll cover the return shipping. You can return uninstalled parts within 14 days of delivery.
Frequently asked questions
How do I know if my X3 M or X4 M is an LCI?
In the US, 2022 and later models are LCI, and 2020 and 2021 models are pre-LCI. The LCI has L-shaped corner intakes in the front bumper, slimmer headlights, new taillights and a larger 12.3-inch center screen. If you're still not sure, text a photo of the front bumper to 609-525-4865.
Will a pre-LCI front splitter fit my 2022+ X3 M?
No. The front bumper changed with the facelift, so front splitters, lips and canards are made for one version or the other. Pick a listing that names the LCI.
Which parts fit both LCI and pre-LCI cars?
Going by their listings, our side skirt extensions, the X3 M rear spoiler, the 3-piece X3 M diffuser with rear corner splitters and the vented hood fit both. Front bumper parts fit only one version.
Do X3 M parts fit the X4 M?
Most front and side parts do, since they're listed for both. Rear parts aren't shared. Our rear spoiler and 3-piece diffuser are X3 M parts, and the X4 M has its own SQ-style diffusers.
What comes with the Unit 17 LCI front splitter?
It comes with self-tapping screws and the installation hardware, and the splitter has pre-drilled mounting holes. It's pre-preg dry carbon with a gloss finish and is made for LCI cars only.
How fast will my order ship?
Most orders ship within 5 business days by UPS or FedEx unless the product page shows a longer lead time, and most US deliveries take 1–5 business days. See our shipping policy.