Twenty Two Tuning
Euro Style Carbon Fibre Rear Diffuser - Compatible with BMW M3/M4 (G80/G81/G82/G83)
Model Selection
Specification:
- Style - EURO style Replacement Rear Bumper Diffuser
- Material - Pre-Preg Carbon Fibre
- Finish - UV Resistant Gloss Resin Coating
- Tested for precise fitment on factory body panels.
- Hand Finished Product
This product is an aftermarket component and is not manufactured by or affiliated with BMW AG.
🛡️ We've Got You Covered
We guarantee that all products listed with vehicle compatibility have been designed using manufacturer-matched data, precision moulds, or verified test-fitment on supported models. If the item you receive does not fit the vehicle stated on the product page, we will work with you to resolve the issue with priority.
Before You Order
Please make sure your vehicle matches the exact model, year, body style, and chassis code shown on the product page. Our team is always available to confirm compatibility if you are unsure.
If There's an Issue
Contact us within 14 days with photos of the part installed (or attempting to install), and we will provide a replacement or solution in line with our fitment guarantee process.
Our Promise
In the rare event a product does not fit your compatible vehicle, and the correct installation procedure has been followed, we will fully support you. We'll cover the return shipping and provide either a replacement product or a full refund. Our goal is to make sure you feel confident when ordering and fully covered if any fitment concern arises.
🛡️ Warranty
All of our products come with a 6–12 Month warranty depending on the manufacturer. View the full warranty policy for every brand here.
🚚 Shipping
Free Worldwide Shipping: All orders include free tracked shipping. Import duties and taxes are the responsibility of the customer.
Stock & Availability: Items are not always held in stock. Please contact us for availability before ordering.
Receiving Your Order: Inspect items before signing. Do not accept damaged goods, as we cannot cover return shipping costs once accepted.
Import & Clearance: You are the importer of record and responsible for customs clearance. Failure to clear items may result in return or destruction, with any related costs deducted from refunds (if applicable).
Off-Road Use Only
Unless explicitly stated otherwise, all products sold by Twenty Two Tuning are designated for off-road or motorsport use only and may not be legal for use on public roads. It is solely the customer's responsibility to determine the legality of installing or using any product in their jurisdiction, including compliance with all local, state, federal, and environmental laws.
No Warranty of Road Legality
Twenty Two Tuning makes no representation, implicit or explicit, regarding the road legality of any product. We are not responsible for any fines, fees, penalties, costs, or damages incurred as a result of improper or unlawful use.
Professional Installation Required
All products should be installed by a qualified professional. Twenty Two Tuning accepts no liability for vehicle damage, personal injury, or any other loss arising from incorrect installation, misuse, or modification of our products. Purchase and use of any product constitutes acceptance of these terms, and all risk is assumed by the customer.
All brand names, logos, and trademarks referenced are the property of their respective owners. This product is not manufactured by, or affiliated with, BMW AG or any of its subsidiaries. It is an aftermarket component designed for compatibility purposes only.
Important Information
Please read these terms carefully before placing your order. Understanding our policies helps ensure a smooth experience with your Twenty Two Tuning products.
VAT & Import Duties
The listed price does not include taxes, installation costs, or customs duties. Import charges vary by country, and any fees applied upon arrival are the responsibility of the customer.
Important: Customs charges are determined by your country's import regulations and are not controlled by Twenty Two Tuning.
Made to Order
Some products are produced on a made-to-order basis. Once an order has been placed and production has begun, any refund may be reduced to cover the work already completed.
When your order reaches your country, you may be required to pay additional customs charges. These are outside our control and not covered by Twenty Two Tuning.
Professional Installation Required
Always use a qualified professional to install resin, FRP, and carbon fibre components. Self-installation or using untrained installers is strongly discouraged, as improper fitment can lead to issues that are not covered under warranty.
Warning: Improper installation voids warranty coverage.
Renderings vs. Reality
Product renderings are for visual reference only and may not reflect the exact appearance of the final part once installed. The real product is always the accurate representation.
Some accessories shown in renderings may not be included, so please refer to the actual product listing for what is available.
Product Receipt & Inspection
When your order arrives, please inspect all items immediately. Confirm that everything is undamaged before signing for the delivery. The courier must allow you to inspect the contents—refusing inspection is not valid.
If you notice damage: Inform the driver, refuse the parcel, and contact us right away. This process allows us to file a claim and arrange a replacement where applicable.
Critical: Do not sign for damaged goods without noting the damage on the delivery receipt.
Painting FRP Products
Because of the nature of resin, FRP parts may require extra preparation before painting. This can include sanding, smoothing, and filling minor imperfections. Some paint shops may charge additional fees due to the extra work involved.
It's important to check the painted surface for any pockmarks or uneven areas—these can be corrected during the preparation and painting stages. These characteristics come from the resin itself and are not considered defects.
Warranty Coverage
All Twenty Two Tuning products include a warranty ranging from 6 months to 1 year. If a product fractures under normal use, we will replace it free of charge.
🛡️ Check Warranty Coverage HereNot Covered: The warranty does not cover damage caused by accidents, improper installation, or external factors. Shipping costs for replacement items are not included under the warranty.
Questions About Our Terms?
Our team is here to help clarify any policies or answer your questions
Technical Deep Dive
Understanding the manufacturing processes and materials behind our carbon fibre components
FRP (Fibre Reinforced Polymer)
FRP is a composite made from carbon fibre and reinforced polymers. When you choose the FRP option from Twenty Two Tuning, your part arrives in a primed black, grey, or white finish, ready for professional preparation and paint.
FRP should always be installed by a professional familiar with carbon and FRP components. This ensures proper alignment, the best fitment, and a clean final finish.
Small marks or pockmarks are completely normal and are part of the resin process used in FRP. These are not defects.
CFRP (Carbon Fiber Reinforced Polymer)
CFRP, often called wet carbon, is made by combining carbon fibre with a polymer resin. This resin binds the fibres together, giving the material its shape, strength, and durability.
CFRP offers an excellent strength-to-weight ratio, making it ideal for automotive parts, motorsport applications, and premium components across various industries.
This is the material used for the majority of carbon fibre parts at Twenty Two Tuning.
Dry Carbon (Pre-Preg)
Dry carbon refers to the manufacturing method, not the material being "dry." It uses pre-preg carbon sheets that are pre-impregnated with resin before molding. The parts are then cured in an autoclave, where high pressure and heat create extremely light and strong components.
Dry carbon is considered a premium upgrade because of its superior strength, reduced weight, and the precision of the manufacturing process. It is also more costly due to the complexity of production.
Manufacturing Process Comparison
💎 CFRP (Wet Carbon)
- Carbon fibre laid into mold manually
- Saturated with resin during layup
- Cured at atmospheric pressure
- Excellent strength-to-weight ratio
- Cost-effective premium option
- Used for majority of our parts
🏆 Dry Carbon (Pre-Preg)
- Pre-impregnated carbon sheets
- Resin already applied to fibres
- Autoclave cured (high pressure/heat)
- Best strength-to-weight ratio
- Premium pricing due to complexity
- Clearly labeled when available
💡 What This Means for You
Unless stated otherwise, all Twenty Two Tuning carbon fibre parts are made from CFRP. We use CFRP because it offers the perfect balance of strength, durability, and value — giving you premium carbon parts without unnecessary cost.
For those looking for the highest performance and the lightest possible components, we offer a selection of dry carbon products. These items will always be clearly labelled in the product title or description.
Material Guide
Understanding the different materials we use helps you make the best choice for your build. Each material has unique characteristics, benefits, and care requirements.
FRP (Fibre Reinforced Polymer)
📋 Characteristics
FRP parts are made using a blend of reinforcing fibres and a polymer resin. Because of how FRP is produced, certain surface traits—such as light sanding lines, filler marks, or texture variations—are completely normal. These are natural characteristics of the material, not defects.
🔧 Fitment
FRP parts often require minor adjustment to achieve perfect alignment. This is standard for the material, especially since all vehicle manufacturers work within tolerances and FRP can flex or shift slightly during production.
🎨 Finishing
A professional body shop will easily refine and prepare FRP parts for paint, giving you a smooth, clean final finish and proper fitment once installed.
Wet Carbon (CFRP / Wet Lay Carbon Fibre)
📋 Characteristics
Wet carbon is created by laying carbon fibre into a mold and saturating it with resin. This process delivers a deep, glossy weave pattern that looks premium and eye-catching. Because of the manual nature of wet lay carbon, small pinholes or slight weave variations can occur. These are inherent to the process, not defects.
✨ Finish
Wet carbon parts typically ship with a gloss finish. Many customers choose to add an extra coat of clear lacquer to increase depth, shine, and UV protection.
🛡️ Care
Paint Protection Film (PPF) is a great long-term option, but it's important to avoid applying it immediately. Applying PPF too soon can pull at the lacquer before it's fully settled, so allowing proper cure time helps avoid peeling or lifting.
Dry Carbon (Pre-Preg Carbon Fibre)
📋 Characteristics
Dry carbon is the highest-grade carbon fibre option, offering the best strength-to-weight ratio. Each sheet of carbon is pre-impregnated with resin before molding, ensuring consistent quality and superior rigidity.
✨ Finish
Dry carbon products have an OEM-grade appearance with clean weave consistency and sharp finishing. The autoclave curing process delivers a premium, lightweight component that integrates seamlessly with the vehicle.
⚡ Quality
Dry carbon typically provides the most precise fitment and long-term durability thanks to its advanced manufacturing method and higher quality raw materials.
PP (Polypropylene)
📋 Characteristics
Polypropylene is a lightweight thermoplastic known for its flexibility, chemical resistance, and durability. It's less dense than other plastics, making it ideal for impact-resistant body kit components.
🔧 Fitment
PP body parts are easier to install thanks to their flexibility, allowing them to adjust around the vehicle's natural curves. This flexibility also means PP components are less prone to cracking or breaking from minor impacts.
🎨 Finishing
PP can be painted, but proper preparation is essential. Because the material is naturally hydrophobic, it needs correct surface treatment to ensure paint adhesion and long-lasting results.
🧽 Care
PP parts are low-maintenance and can handle a variety of cleaning products without damage. Regular washing and occasional waxing are enough to keep the finish looking sharp.
⚖️ Quick Comparison
Need Help Choosing?
Our team can recommend the best material for your specific application
Contact Our ExpertsOur Commitment to You
Transparency, Quality, and Customer Satisfaction at Every Step
At Twenty Two Tuning, we understand that placing a high-value order online can feel like a big step. With so many options out there, it's not always easy to know who you can trust. So we want to take a moment to explain how our ordering process works and reassure you that we're fully committed to clear communication, honesty, and looking after our customers.
Pricing & Shipping
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All-Inclusive Pricing
We keep our pricing simple and transparent. All Twenty Two Tuning carbon products and accessories include shipping in the listed price. What you see is what you pay.
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Tax Information
We don't cover import taxes, but we do everything we can to make sure you pay the lowest legal amount. Since we ship worldwide, we're not able to calculate or pre-pay taxes for every country. If you'd like more information or want a pre-paid import quote, just contact us before placing your order and we'll be happy to help.
Order Production & Shipment
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Swift Production
As soon as you place an order, your order goes into production the very next working day.
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Personalised Updates
We make sure you're never left wondering what's happening with your order. Once your purchase is placed, we'll usually email you within 24–48 hours with an update on when it's scheduled to ship. When your order is ready to go, we'll confirm everything and send your tracking details as soon as possible. Every item is also checked for any defects in the final days before dispatch, so you're kept fully informed at every stage.
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Shipping Method
Our standard shipping method is air freight for most products, with sea freight used for larger items. You can find the estimated delivery timeframe just below the Buy Now buttons above this section.
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Customs Clearance
We know customs clearance can feel a bit stressful, and we're here to help however we can. If you have any questions, just reach out and we'll guide you through it. If your order does require customs clearance, we'll send you a notification with all the relevant details. In most cases, no extra action is needed from you at all.
Alternate Ordering & Payment Options
If you prefer a different payment method, just let us know. We can invoice you directly for your parts, and you'll have the option to place a 50% deposit to start production, then pay the remaining balance once your order is completed and ready to ship.
💡 Flexible Payment Methods
We offer Shop Pay Instalments, along with a wide range of other payment options, including all major debit and credit cards and select crypto payments.
Professional Installation
Improper installation is one of the biggest issues we see, and it can easily be avoided. Please make sure your parts are fitted by a professional who understands FRP and carbon fibre products. A reputable body shop is usually the best option. This helps ensure proper fitment, durability and the best long-term results.
⚠️ Important: Carbon Fibre Bonnets
If you're ordering a carbon fibre bonnet, keep in mind that the underside is typically FRP with a matte black finish. This may need painting depending on your preference.
The top surface is full carbon unless you've selected a double-sided carbon bonnet.
Fast Production
Your order enters production the next working day
Regular Updates
We keep you informed at every stage
Quality Checked
Every item inspected before dispatch
Flexible Payment
Multiple payment options available
We're Here to Help
Whether you're ordering through the website or choosing the invoicing option, we're flexible and here to help. At Twenty Two Tuning, we appreciate your trust and work hard to make your experience as smooth and straightforward as possible.