BMW M3 G80 G81 & M4 G82 G83 Pre-Preg Carbon Fibre T-CSL Front Splitter by FORM

Improve the presence and aerodynamics of your BMW G80 M3 or G82 M4 with the FORM Pre-Preg Carbon Fibre CSL Front Splitter. This meticulously crafted splitter, inspired by the iconic BMW CSL, adds a touch of motorsport-inspired style while delivering genuine performance benefits. Available from Forge Automotive supply only, or fitted at our sites in Darwen and Leeds.

Key features

• Pre-Preg Carbon Fibre Construction: Made from premium pre-preg carbon fibre, ensuring superior strength, lightweight, and a flawless finish.
• CSL-Inspired Design: bold, track-focused design inspired by the legendary BMW CSL.
• Improved Aerodynamics: Optimises airflow beneath the vehicle, increasing downforce and improving stability at higher speeds.
• Perfect Fitment: Designed specifically for the G80/G81/G82/G83 M3 and M4, guaranteeing a seamless and integrated appearance.
• Three-Piece Construction: Consists of a centre splitter and two side splitters for a more bold and dynamic look.
• Improved Handling: Increased downforce improves stability and cornering performance.
• Improved Aesthetics: Adds a sporty and bold touch to your M3 or M4's front end.
• Lightweight Design: Minimises weight while maximizing strength and durability.
• Easy Installation: Utilises OEM mounting points for a straightforward installation process.

What's in the box

• 3 x pre-preg carbon fibre T-CSL front splitter pieces

Fitment

• BMW M3 Saloon (2020+, G80)
• BMW M3 Touring (2022+, G81)
• BMW M4 Coupe (2020+, G82)
• BMW M4 Convertible (2020+, G83)

Supplied, fitted and finished by Forge Automotive

Forge Automotive can fit this splitter at either of our sites: Darwen in the North West or Gildersome, Leeds in Yorkshire. Forge Automotive can also finish this splitter before fitting: paint protection film (PPF) to guard the carbon, a colour change or satin wrap, or colour matching to the car. Ask when ordering. See more BMW M3 G80/G81 parts.

Common questions

What is pre-preg carbon fibre?
Pre-preg is carbon cloth that arrives from the mill already impregnated with a measured amount of resin. The part is laid up in the mould and cured under heat and pressure, usually in an autoclave or oven. Because the resin content is controlled, the finished part is lighter, stiffer and more consistent than a hand-laid one, with a cleaner weave and better dimensional accuracy. It costs more to make, which is why pre-preg parts sit at the top of a range.

What does "dry carbon" mean?
Dry carbon is the everyday name for a pre-preg part: carbon fibre all the way through, rather than a carbon skin over a fibreglass or plastic base. The surface still has a clear lacquer, but there is no excess resin in the laminate, so the part is light and rigid.

What is a 2x2 twill weave?
The weave pattern in the carbon cloth. In a 2x2 twill each strand passes over two and under two, which gives the diagonal pattern BMW use on their own M Performance and M carbon parts. Choosing 2x2 means aftermarket and factory carbon on the same car match.

How do I look after a carbon fibre part?
Treat the lacquer like paint: wash with pH-neutral shampoo, avoid harsh solvents, and wax or seal it. UV is what ages carbon, so a protected finish lasts longer. Forge Automotive can apply paint protection film to any carbon part before fitting, which guards against stone chips and keeps the weave clear.

How many pieces is it?
Three: a centre splitter and left and right side splitters.

Does it need drilling or extra brackets?
No. FORM state it uses the OEM mounting points.

Fitting is available on every part at our North West (Darwen) and Yorkshire (Leeds) workshops. Prefer to fit it yourself? Fitting instructions ship with every part.

In-stock parts ship in 3–5 working days, fully insured. Every part is fitment-checked before dispatch.

Covered by the manufacturer warranty. Fitting through our workshop keeps it intact.