Precision Fitment
Each part is 3D-scanned against the platform and digitally modelled before tooling — so fitment is engineered, not approximated.
BMW M4 G82 / M3 G80 Dry Carbon Fibre Rear Splitter
£390.00
Finish the rear bumper of your BMW M4 G82 / M3 G80 with these dry pre-preg carbon fibre rear splitters.
- Material: Dry pre-preg carbon fibre, autoclave-cured
- Finish: Gloss clear coat with UV protection
- Fitting: 3M tape and screws on the rear bumper
- Tracked delivery from the UK to Europe and worldwide
- Tracked delivery
- 14-day returns
- ASM warranty
Specialist online — replies in minutes
Speak to ASM before you order
Straight answers on fitment, lead time and build direction — direct from the team that engineers it.
Open WhatsApp LineDoubt removed
before commitment
Every component leaves on one standard: measured fitment, disciplined materials, and a specialist on the line before and after you order. The proof sits below — not the promise.
Composite Construction
Pre-preg carbon and lightweight composite, finished to a consistent standard and built for structural intent — not cosmetic weight.
Support, Both Sides of the Sale
A specialist answers fitment, lead time and compatibility before you order — and stays reachable after it ships.
Finish the rear bumper of your BMW M4 G82 / M3 G80 with these dry pre-preg carbon fibre rear splitters. They extend the lower corners of the bumper for a wider, more planted rear view.
Key features
- Extends the lower rear bumper corners
- Wider, lower rear stance
- Pairs with carbon rear diffusers
- UV-protected clear coat
Compatibility
- BMW M4 G82 / G83 – 2021+
- BMW M3 G80 / G81 – 2021+
Fitment depends on the exact model, bumper and specification. If you are not sure, contact us with your VIN or a photo of the original part and we will confirm fitment before you order.
Rear bumper splitters specifications
| Brand | ASM Sports Tech |
|---|---|
| Part | Rear bumper splitters |
| Material | Dry pre-preg carbon fibre, autoclave-cured |
| Finish | Gloss clear coat with UV protection |
| Fitting | 3M tape and screws on the rear bumper |
| In the box | Rear splitter set with fitting hardware |
| Platform | BMW M4 G82 / G83, BMW M3 G80 / G81 |
| Part number (SKU) | ASMC094 |
Why choose the ASM rear splitters for the BMW M4 G82
They pair perfectly with a carbon rear diffuser for a complete motorsport-style rear end. Every ASM part is checked for fit and finish before it leaves us, and is backed by our warranty and UK-based support.
Dry pre-preg carbon fibre is laid up from fibre sheets that are pre-impregnated with resin and cured under heat and pressure in an autoclave. The result is lighter and stiffer than wet-laid carbon, with a cleaner, more consistent weave. Read more in our guide to dry vs wet carbon fibre.
Fitting and care
The splitters fix to the lower edge of the rear bumper with 3M tape and screws. Dry-fit first, mark the position with masking tape and use a body shop for the neatest result. Clean carbon surfaces with a soft microfibre cloth and pH-neutral products, and protect them with a UV-stable wax or ceramic coating. Step-by-step advice: How to protect and maintain carbon fibre parts.
Delivery, returns and warranty
Every order ships from the UK with tracked delivery to the UK, Europe and worldwide. Delivery options and costs are shown at checkout and explained in our shipping policy. Unused items in original condition can be returned within 14 days, and return shipping is paid by ASM – see the refund policy. Manufacturing defects are covered by the ASM warranty.
Questions about these rear splitters
Which cars do these rear splitters fit?
They are made for: BMW M4 G82 / G83 – 2021+; BMW M3 G80 / G81 – 2021+. If your car has a different bumper, trim level or aftermarket parts, contact us with your VIN and we will confirm fitment before you order.
Is fitting difficult?
No special skills are needed for most owners, but take your time. The splitters fix to the lower edge of the rear bumper with 3M tape and screws. If you prefer, any specialist or body shop can fit them quickly.
What is the difference between dry carbon and standard carbon fibre?
Dry pre-preg carbon is cured under heat and pressure with a controlled amount of resin, so it is lighter, stiffer and has a cleaner weave than wet-laid carbon. Our guide on wet vs dry carbon fibre explains the difference.
Do you ship to my country?
Yes. We ship from the UK to the UK, Europe and worldwide with tracked delivery. Prices can be shown approximately in EUR or USD, and orders are charged in GBP.
Complete your BMW M4 G82 / G83 build
BMW M3 G80 / 3 Series G20 Dry Pre-Preg Carbon Fibre CS Style Rear Spoiler
BMW M3 G80 / M4 G82 Dry Carbon Fibre Rear Diffuser with LED Brake Light
BMW G20 / G22 / G30 / M3 G80 / M4 G82 Dry Carbon Fibre Exterior Door Handle Covers
BMW M3 G80/G81 Dry Carbon Fibre Replacement Mirrors- All BMW M4 G82 / G83 parts
- All BMW M3 G80 / G81 parts
- More front splitters
The questions
worth asking first
Fitment, installation, materials, lead time and support — the answers that settle the last doubts before you order. Anything not covered, the specialist line is one tap away.
Fitment is defined by the product title, the listed application scope and your platform. If you're unsure, open the WhatsApp line and a specialist will confirm the correct application before you order.
Yes — particularly for carbon aero, exhaust components and platform-specific upgrades, where alignment, finish protection and correct hardware positioning matter to the result.
It depends on the part, but the standard is consistent: disciplined finish, clean visual consistency and resolved platform-specific presentation. Pre-preg carbon and lightweight composite where the application calls for it.
It depends on whether the part is in stock or built to order. The estimated timeline on the product page is the reference to use before checkout — and the specialist line can confirm it for your exact spec.
Yes. For fitment, visual direction, material choice or build planning, use the WhatsApp block on this page and a specialist will guide you before you place the order.
Yes — worldwide shipping is available across most ASM Sports Tech lines. Method and transit time vary by product category, destination and dispatch origin.
Two ways
to order
Order directly with ASM Sports Tech, or through an authorised partner in your region. Same components, same standard — whichever route fits the build.
Regional Access
Prefer a local point of contact? An authorised ASM partner in your region can handle the order end to end.
Project-Based Ordering
Multi-part builds and full upgrade directions are best coordinated as one order — we'll plan it with you before placement.
Direct or Dealer
Order direct from ASM or through a partner — the parts, the fitment standard and the support are identical either way.
ASM Sports Tech — The Programme
Complete the build
Matching components for the same platform — selected to fit alongside what you're ordering and finish the build as one resolved direction.
