G80 M3
27 products
Carbon fiber splitters, grilles, side skirts, diffusers and spoilers for the BMW G80 M3, most in pre-preg dry carbon. Several are Unit 17 designs sold only here, including the SPL1 and SPL2 front splitters, the V2 side skirt extensions, the 3-piece rear diffuser and the M3 rear corner extensions.
Beyond the bodywork you’ll find CSL-style trunks, a vented hood, seat backs, console and steering wheel trim, and engine bay parts such as the cooling shroud and a CSL-style strut brace. Every part comes with a 1-year warranty, and our fitment guarantee covers the car listed on its product page. Not sure which version suits your build date or options? Text us at 609-525-4865 before you order.
BMW G80 M3 buying guide
What the M3 shares with the M4, and what it doesn't
Most front-end parts on this page are listed for the G80 M3 and the G82/G83 M4 alike: splitters, grilles, canards and the lower bumper air ducts. Further back, the sedan body changes things. Rear bumper corners, full-replacement side skirts, trunk spoilers and trunks come in M3-specific versions, so read the fitment line before you add one to your cart.
Choosing a front splitter
Our own designs lead the range. The SPL1 OEM++ starts from the factory M Performance splitter, swaps its three small center fins for one bolder center blade and reshapes the corners; it's the best-selling part in our store. The SPL2 is a one-piece pre-preg splitter that mounts to factory hardware, with pre-drilled holes for optional extra support. If you'd rather stay close to BMW's look, there are CSL-style, MP-style and OEM-style options, plus replacement corners. Compare them under G80 M3 front lips and splitters.
Grilles: check for front radar first
The CSL-style kidney grille comes in two versions, one for cars with the front driver-assistance radar and one for cars without it. The wrong one won't fit, so confirm your car's equipment before you choose from the G80 M3 grilles. For the GT-style and V-style grilles, check the listing's fitment notes or text us.
Swap-in trims and add-on aero
Some parts replace a factory gloss-black piece instead of adding a new one. The rear bumper corners unclip and swap over, and the OEM-style full-replacement side skirts use the factory tabs and fixing points with no drilling. Add-on parts attach to the existing bodywork: the high-kick ducktail uses 3M tape, for example, while the V2 side skirt extensions bolt on. Each listing explains its method. Test-fit every part before you paint, drill or install it, because installed parts can't be returned.
Interior and engine bay
BMW changed the M3's dashboard twice: the curved display arrived on cars built from July 2022, and the 2025 facelift (LCI) moved to iDrive 8.5. Interior trim is sold in versions for each, so match the option to your build date. Under the hood, the engine cover, cooling shroud, oil cooler guard and CSL-style strut brace are shared with the M4 and the G87 M2, which use the same S58 engine.
Shipping and timing
Unless the product page shows a longer lead time, most orders ship within 5 business days, and most US deliveries arrive 1–5 business days later. Large or made-to-order parts such as the hood can take several weeks, and parts marked Coming soon don't have a ship date yet, so ask us about timing before ordering one.
Frequently asked questions
Do G80 M3 parts fit the G82 M4?
Front-end parts usually do: the splitters, grilles, canards and lower air ducts on this page are listed for the G80 M3 and the G82/G83 M4. Rear corners, trunk spoilers, trunks and full-replacement side skirts are body-specific. The fitment line on each product page is the final word, and if a part doesn't fit the car listed there, our fitment guarantee covers the return shipping.
Will these parts fit the 2025 M3 facelift (LCI)?
Check the years on the product page. Many G80 exterior listings are marked 2021 to present, while interior trim comes in separate versions for each dashboard generation. If a listing doesn't mention your model year, text us at 609-525-4865 before you order.
What does pre-preg or dry carbon mean?
Pre-preg carbon fabric comes with a measured amount of resin already in it and is cured under heat and pressure, which gives a more even weave and less excess resin than hand-laid (wet) carbon. Most of our G80 range is pre-preg with a gloss, UV-resistant clear coat; each listing states its material and finish. Read more in Prepreg vs. wet-layup carbon fiber.
Which G80 M3 parts are Unit 17 exclusives?
The SPL1 OEM++ and SPL2 front splitters, the V2 side skirt extensions, the side skirt extensions with a small winglet, the 3-piece rear diffuser, the M3 rear corner extensions and a rear diffuser with an F1-style brake light. We design them in-house and they aren't sold by other retailers. See the G80 M3 exclusives.
Which CSL-style grille do I need?
If your M3 has the front driver-assistance radar, choose the grille listed as radar compatible ("w/ radar"). Cars without the radar take the "without radar" version. If you aren't sure what your car has, text us before ordering.
What if a part doesn't fit, or I change my mind?
If a part doesn't fit the car on its product page, contact us before installing it and we'll cover the return shipping for a refund or replacement. Otherwise, uninstalled parts can be returned within 14 days of delivery for a refund (excluding shipping), or within 14–30 days for store credit. Installed or modified parts can't be returned. Details are in our return policy.