Name: 2014-2020 BMW F82/F83 M4 DE Style Rear Diffuser with Caps
Brand: Darwin Pro
SKU: 3234LB.CA
Price: 670.0 USD
Availability: InStock

2014-2020 BMW F82/F83 M4 DE Style Rear Diffuser with Caps

$670.00

Fitment:

Make: BMW

Model: 2014–2020 BMW M4 F82/F83

Year: 2014 - 2020

Free Shipping within the Continental US | Worldwide Shipping AVAILABLE

Shop premium parts to enhance your vehicle's performance, style, and customization with high-quality upgrades. This LB Style Rear Diffuser and Bumper Cap set brings an aggressive finish to the back end of your M4, perfectly complementing its wide, muscular stance.

Modify your car with BayOptiks

Surface Finish

FRP - Unpainted Fiber Reinforced Plastic

CFRP - Carbon Fiber

FGCF - Forged Carbon Fiber - Made to Order

Pickup available at BayOptiks Dublin Shop

Usually ready in 5+ days

View store information

BayOptiks Dublin Shop

Pickup available, usually ready in 5+ days

6743 Dublin Boulevard
#31
Dublin CA 94568
United States

Crafted with high-quality materials, this kit offers precise fitment and a bold look suited for street or track builds. Ideal for enthusiasts looking to refine their rear profile with performance-inspired styling.

Fitment: 2014–2020 BMW M4 F82/F83
Package Contents:

One rear diffuser
One rear bumper caps

Made To Order Shipping Information Made-to-Order Items: If a material option shows "MADE TO ORDER", it means that specific option is currently out of stock and will be produced upon order. Customers can choose from the following shipping methods: * Standard Shipping And Handling (no extra cost) with an ETA of 3-4 months. * Expedited Shipping And Handling (additional cost: $550) with an ETA of 5-6 weeks. In-Stock Items: If a product does not display "Made To Order" when selecting a material option, then it is in stock. It will be shipped from our warehouses within 3-5 business days, plus shipping time.

We offer free shipping within the Continental U.S, for Headlights, Taillights, DRLs and Carbahn controllers. For Exterior and Performance products, standard shipping rates apply, We also ship worldwide, with rates automatically calculated at checkout.

Please note:
• For Retrofits, you are purchasing a headlight modification service.
• If you select "Shipping own headlights to BayOptiks for modification", you are required to send us your headlights.
• If you choose "Purchase new OEM headlights", we will order and modify a new OEM headlight for you.
• Once your customizations are complete, we will ship it to you!

Complete Headlights: 3-5 business days for order processing plus shipping time.
Custom & Pre-Built Headlights: 6-8 weeks depending on the complexity and component availability.
New OEM and cores: 6-8 weeks plus an additional 4-8 weeks as these are special orders base on the vehicle VIN due to different versions (North American, European, etc.)
DRLs, Taillights and Carbon Fiber Aero: 3-5 business days for order processing, plus shipping time.
Lens Replacements: 1-3 weeks plus shipping time.

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$670.00

2014-2020 BMW F82/F83 M4 DE Style Rear Diffuser with Caps - FRP - Unpainted Fiber Reinforced Plastic

What comes with the 2014-2020 BMW F82/F83 M4 DE Style Rear Diffuser with Caps?

This diffuser package includes one rear diffuser and rear bumper caps.

$1,020.00

2014-2020 BMW M3 F80 M4 F82 VRS Style Carbon Fiber Rear Diffuser - CFRP - Carbon Fiber

Our modification process

We carefully disassemble, inspect, and customize each part. Then, we put everything back together, testing both function and form to ensure it all works perfectly and meets our high standards to send it back to you!

$670.00

2014-2020 BMW M3 F80 M4 F82 VRS Style Carbon Fiber Front Lip - CFRP - Carbon Fiber

Does the 2014-2020 BMW M3 F80 M4 F82 VRS Style Carbon Fiber Front Lip - CFRP - Carbon Fiber enhance the car's appearance?

With precision-molded carbon fiber, this lip adds both visual aggression and functional downforce.

$801.82

F8X F80 M3 F82 F83 M4 Carbon Fiber Diffuser (2015-2020)

$294.55

F8X F80 M3 F82 F83 M4 Carbon Fiber Center Diffuser (2015-2020)

Will the F8X F80 M3 F82 F83 M4 Carbon Fiber Center Diffuser (2015-2020) boost my car's appearance?

Absolutely! This high-grade diffuser adds a premium aesthetic to your vehicle.

$1,066.67

BMW F8X F80 M3 F82 M4 Carbon Fiber PSM Style Diffuser 4pc/set

Made by real people

We're a full-time shop with a dedicated team, all sharing a passion for modifying headlights and cars. We are focused on delivering an unsurpassed level of quality in our retrofit products and services, to ensure customer satisfaction..

$580.00

2014-2020 BMW M3 F80 & M4 F82 MP Style Carbon Fiber Rear Diffuser - CFRP - Carbon Fiber

$780.00

2014-2020 BMW F82/F83 M4 DE Style Rear Diffuser - CFRP - Carbon Fiber

Does the 2014-2020 BMW F82/F83 M4 DE Style Rear Diffuser - FRP come in different shipping speeds?

For our made-to-order diffuser, you can select standard (3-4 months, no added cost) or expedited (5-6 weeks, $550 extra).

$480.00

2014-2020 BMW M3 F80 & M4 F82 SM Style Carbon Fiber Rear Caps - CFRP - Carbon Fiber

Are the 2014-2020 BMW M3 F80 & M4 F82 SM Style Carbon Fiber Rear Caps sturdy?

Made of strong carbon fiber reinforced polymer (CFRP), these rear caps are built to last and handle tough conditions.

$773.00

2014-2020 BMW F82 M4 Carbon Fiber Trunk Spoiler - Carbon Fiber

How quickly will the 2014-2020 BMW F82 M4 Carbon Fiber Trunk Spoiler ship?

If in stock, this spoiler ships from the warehouse within 3-5 business days, plus standard shipping.

$740.00

2014-2020 BMW M3 F80 & M4 F82 SM Style Front Lip - CFRP - Carbon Fiber

$566.18

F8X F80 M3 F82 F83 M4 Carbon Fiber V Style Front Lip (2015-2020)

What are the main benefits of the F8X F80 M3 F82 F83 M4 Carbon Fiber V Style Front Lip (2015-2020)?

It gives your car aggressive styling, aerodynamic precision, and track-inspired flair, unleashing the true potential of your BMW.

$650.00

2014-2020 BMW F82/F83 M4 DE Style Front Lip - FRP - Unpainted Fiber Reinforced Plastic - Made to Order

How quickly will the 2014-2020 BMW F82/F83 M4 DE Style Front Lip - FRP ship if it's in stock?

If in stock, this front lip ships from our warehouses within 3-5 business days, plus transit time.

Covered by a 1-Year Warranty

We provide a 1-year warranty on all Headlight DRLs and Taillights, covering any manufacturing defects or malfunctions. For Headlight Retrofits, we offer a 1-year warranty on any defects related to the the services performed by BayOptiks.

$480.00

2014-2020 BMW M3 F80 & M4 F82 SM Style Carbon Fiber Rear Lip - CFRP - Carbon Fiber

About Us

BayOptiks was established in 2016. The founder started modifying headlights as a hobby in his home garage which has now grown into a full time shop with a team of 8 who all share the same passion for modifying headlights and cars.

$638.18

F8X F80 M3 F82 F83 M4 Carbon Fiber LED Diffuser (2015-2020)

Does the F8X F80 M3 F82 F83 M4 Carbon Fiber LED Diffuser (2015-2020) enhance the car's appearance?

Absolutely! This diffuser adds a touch of sporty aggression and elevates the car's aesthetics.

$147.27

F8X F80 M3 F82 F83 M4 Carbon Fiber Front Bumper Upper Splitters (2015-2020)

Do the F8X F80 M3 F82 F83 M4 Carbon Fiber Front Bumper Upper Splitters enhance the car's appearance?

These splitters add a touch of sporty aggression to your BMW, giving it a more commanding presence on the road.

Covered by a 1-Year Warranty

Shop with confidence and peace of mind! We provide a 1-year warranty on all Headlight DRLs and Taillights, covering any manufacturing defects or malfunctions. For Headlight Retrofits, we offer a 1-year warranty on any defects related to the services performed by BayOptiks.

Why choose BayOptiks?

Made by real people

BayOptiks' journey started when our founder started modifying headlights as a hobby in his home garage. Today, we've grown into a full-time shop with a dedicated team, all sharing the same passion for modifying headlights and cars.

Here, we are focused on delivering an unsurpassed level of quality in our retrofit products and services, committed to ensure customer satisfaction.

We are located in Dublin, California, and for local customers, we offer in-house full-service for your needs, including headlight removal and reinstallation, restoration, repairs, and complete retrofit packages. Our location is 6743 Dublin Blvd, #17, Dublin, CA.

We Offer Local Install

If you're in Dublin, CA, BayOptiks offers professional installation services at our headquarters. Installation is available exclusively for products purchased through our site. Click here to request a quote today!

Perfect fit assured

We ensure our products are a perfect match for your ride by uniquely combining two factors:

Premium quality products

We offer only the highest quality products, giving you the confidence that it will be the perfect fit for your car.

Expertise & know-how

With over 8 years of expertise, we are the trusted experts to customize and assemble the perfect part for your vehicle.

Transforming your ride

Your car should be more than just a vehicle—it should reflect your style and meet your needs.

Feature Icon 1 Our customization services turn your ride into a true extension of your personality, with tailored upgrades that make it more enjoyable.

Feature Icon 2 We focus on perfecting every detail, ensuring your car looks and feels exactly how you envision it.

2014-2020 BMW F82/F83 M4 DE Style Rear Diffuser with Caps

Make: ["BMW"]

Model: 2014–2020 BMW M4 F82/F83

Year: ["2014 - 2020"]

from $670.00

FAQs

Our custom products are built in-house at BayOptiks headquarters in Dublin, CA, USA. All other products are sourced from vetted manufacturers, and we perform in-house testing to ensure they meet our high-quality standards.

BayOptiks is located in Dublin, CA 94568, USA, where all of our custom products are also made.

Yes, all of our products can be installed at home.

Yes, we offer a 1-year warranty on all our products.

Our customization process is straightforward. You can either ship us your headlights or purchase new OEM headlights, which are required for customizations. For some headlights, we offer a Pre-Built option (a core exchange program) to minimize downtime for your car. If you choose this option, purchase our Pre-Built modified OEM headlights with an additional core deposit. Install the new headlights, send your old ones back to us, and we'll refund your core deposit in full! Here you can check all Pre-Built options.

Yes, we offer installation services by appointment. If you're interested, click here.

No worries! All our products have been tested for compatibility and functionality. You can also check vehicle compatibility in the product descriptions on each product page.

We accept major credit cards, PayPal, Shop Pay, and payment plans through Affirm, Klarna, and Shop Pay.

Non-custom items are processed within 3-4 business days. Custom items require 6-8 weeks to build before shipping to ensure they are perfect for you.

You can track your order through your optional account or by checking the link on the order confirmation page for the latest status.

Each upgrade option works differently. Detailed descriptions with more information are provided on the product options page for your clarity.

2014-2020 BMW F82/F83 M4 DE Style Rear Diffuser with Caps

Fitment:

Modify your car with BayOptiks

Covered by a 1-Year Warranty

Why choose BayOptiks?

Made by real people

We Offer Local Install

Perfect fit assured

Premium quality products

Expertise & know-how

Transforming your ride

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FAQs