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M4 Style Carbon Fiber Trunk Spoiler - BMW G80 M3 & G20 3 Series

Elevate your BMW G80 M3 or G20 3 Series with the sleek and sporty M4 Style Carbon Fiber Trunk Spoiler. Crafted to mimic the iconic M4 design, this spoiler adds a refined, aggressive edge while enhancing the vehicle's aerodynamics for improved stability at high speeds. Make a statement that blends elegance and performance with this must-have upgrade.

$399.99
$450.00 11% OFF
5.0 (1 reviews)

Save $50.01 • Limited Time Offer

Premium Quality Parts
OEM-Grade Performance
5.0/5 Rating
1 verified reviews
Expert Support
BMW Specialists Available 24/7

Trusted by 30,000+ BMW Owners

Join thousands of satisfied enthusiasts who trust us for their upgrades.

Payment Options

Bimmer Plug Guarantees

OEM Fitment Precision

OEM Fitment Precision

Bimmer Plug Warranty

30-45 Min Install

30-45 Min Install

UV Clear Coat

UV Clear Coat

Dedicated Support

Dedicated Support

Fully Reversible

Fully Reversible

Genuine 2x2 twill weave carbon fiber construction — not fiberglass, not wrapped plastic
UV-resistant multi-layer gloss clear coat — maintains finish through years of sun exposure
Engineered for BMW G80 M3 and G20 3-Series using factory OEM mounting points
Bolt-on installation in 30-45 minutes using factory mounting points — no cutting, no coding, fully reversible
M4-inspired trunk lip profile — adds rear visual aggression and a planted motorsport stance
Significantly lighter than OEM plastic spoiler alternatives
Hand-laid and vacuum-formed for dimensional accuracy and flush panel gaps

SPECIFICATION & COMPATIBILITY

Will it fit my exact car?

Verify compatibility with your vehicle

Fitment Database

Verified compatibility matrix

Year Range Model Chassis Code Notes
2021-Present G80 M3 G80 All variants including Competition and CS
2019-Present G20 3-Series G20 320i, 330i, 340i, M340i — sedan body style

Installation Protocol

Step-by-step procedure

Professional Installation Recommended

While DIY installation is possible with mechanical knowledge, professional installation is recommended for optimal results and to avoid potential fitment issues.

Book Professional Installation
01

Clean the trunk lid thoroughly with isopropyl alcohol and allow to dry. This ensures optimal surface contact at the mounting points.

02

Open trunk lid and locate the OEM spoiler mounting hardware accessed from the inside of the trunk lid panel.

03

Using a Torx screwdriver, remove the factory spoiler mounting fasteners and carefully lift the OEM spoiler off the trunk lid.

04

Position the Bimmer Plug carbon fiber spoiler over the OEM mounting points without securing. Confirm alignment and flush fitment across the full span.

05

Align spoiler correctly and fasten through the factory mounting points. Apply even torque — do not overtighten carbon fiber components.

06

Inspect all edges for flush gap alignment. Wipe the carbon surface clean with a dry microfiber cloth and inspect the finish.

What You Should Know Before Installing

Our product is engineered for simplicity. No special tools, no expertise required. Just straightforward installation that takes minutes.

Time 30-45 minutes
Reversible Yes, fully
Watch Installation
CARBON FIBER SPOILER COMPARISON

OEMVSBIMMER PLUG

M4-Style Carbon Fiber Trunk Spoiler — G80 M3 & G20 3-Series

Material
ABS Plastic vs 2x2 Twill Carbon
Finish
Body-Color Paint vs UV Gloss Clear Coat
Installation
Factory Fitted vs Bolt-On, 30-45 Min
Warranty
Standard OEM Coverage vs Manufacturer's Warranty

Qualitative assessments based on product category and real-world use cases.

Visual Impact
65
94
Weight Reduction
50
88
Fitment Precision
95
92
Surface Longevity
80
88
M4 Style Carbon Fiber Trunk Spoiler - BMW G80 M3 & G20 3 Series
SPECIFICATION
OEM STANDARD
BIMMER PLUG CARBON FIBER
01

Material Construction

ABS plastic, body-color

Real 2x2 twill carbon fiber

02

Design Philosophy

Conservative, factory look

M4-inspired motorsport profile

03

Installation Process

Factory-fitted at assembly

Bolt-on, 30-45 min, fully reversible

04

Fitment Engineering

OEM mounting points

OEM mounting points, no modification

05

Surface Finish & Protection

Standard automotive paint

UV-resistant gloss clear coat

06

Warranty Coverage

Standard OEM coverage

Manufacturer's Warranty — contact support

07

Customization Options

Body color only

Gloss carbon finish standard

08

Weight Reduction

Standard ABS weight

Lighter than OEM plastic

09

Build Quality

OEM production standard

Hand-laid, vacuum-formed

10

Installation Support

Dealer install only

DIY guide + tech support line

BUILD TRANSPARENCY

Every detail. Measured, verified, and documented.

From material selection to final fitment validation, each stage is engineered to preserve OEM refinement.

3 quality gates
OEM+ integration standard
Human Tested before dispatch
Learn About Our Process
01

Precision Carbon Fiber Engineering

Each spoiler is hand-laid using genuine 2x2 twill weave carbon fiber and vacuum-formed in a precision mold derived from OEM G80 M3 and G20 trunk lid geometry. Vacuum forming eliminates air pockets and inconsistencies that compromise lesser carbon parts, ensuring a consistent wall thickness, accurate dimensions, and panel gaps that align flush with your factory trunk lid. The result is a component that installs without adjustment and looks like it was engineered by BMW — because its geometry was derived from the same source data.

Explore Standard
02 / CRAFT DETAIL

UV-Resistant Clear Coat Protection

Cheap carbon fiber parts are notorious for yellowing within a single summer of direct sun exposure. Bimmer Plug's G20/G80 trunk spoiler is sealed under a multi-stage UV-resistant gloss clear coat designed specifically for exterior automotive applications. This protective layer prevents UV-induced degradation of the epoxy resin matrix beneath, maintaining the deep, high-gloss weave appearance through years of outdoor exposure. The same clear coat formulation used on premium aftermarket carbon components in professional motorsport builds — applied to every Bimmer Plug spoiler before it leaves the facility.

Explore Standard
03 / VALIDATION

Quality Assurance — Manufacturer's Warranty

Every Bimmer Plug M4-Style Carbon Fiber Trunk Spoiler undergoes fitment verification and surface quality inspection before shipment. Units are checked for dimensional accuracy against G80 M3 and G20 3-Series mounting specifications, surface finish consistency, and clear coat adhesion integrity. Any unit that does not meet Bimmer Plug's quality standards is rejected before it reaches a customer. This product is covered under Manufacturer's Warranty — contact support for coverage details. Our support team is available via phone, text, or email to assist with any quality or fitment concerns post-installation.

Explore Standard

Features & Specifications

01 Premium

Real Carbon Fiber — Not a Compromise

Constructed from genuine 2x2 twill weave carbon fiber with a UV-resistant clear coat finish. Every layer is hand-laid and vacuum-formed — delivering a depth of weave pattern and surface precision that wrapped plastic alternatives simply cannot achieve. This is authentic carbon fiber, built to last.

02 Verified

M4 Silhouette on Your G80 M3 or G20

The M4-inspired trunk lip profile adds a visibly more aggressive, motorsport-driven rear stance to the G80 M3 and G20 3-Series. The spoiler's geometry is drawn directly from M4 proportions — giving your sedan the rear visual presence of BMW's high-performance coupe sibling.

03 Precision

OEM Mounting — Zero Modifications

Engineered to bolt directly onto your factory trunk lid mounting points with no drilling, no cutting, and no permanent alterations. This means a flush, factory-quality fitment from the moment it's installed — and full reversibility if you ever need to return to stock configuration.

04 Complete

UV-Protected Finish That Lasts

Cheap carbon parts yellow and haze within months of sun exposure. Bimmer Plug's G20/G80 trunk spoiler is sealed under a multi-layer UV-resistant clear coat formulated to protect the gloss weave finish from oxidation, UV degradation, and environmental weathering over the long term.

Bimmer Plug · Quality Promise

Upgrade With Confidence: Premium Mods, Backed by Pros

You’re not just buying parts — you’re tapping into expert support, exclusive resources, and member bonuses that turn every mod into a premium experience.

Our Guarantees

01

Premium Warranty Coverage

Comprehensive coverage protecting your investment against manufacturing defects and performance failures. Quality backed by our commitment.

02

Guaranteed Fitment

Perfect fit for your exact model and year. Free VIN check and install guidance included with every order.

03

Protected Purchase Policy

Defective or damaged items replaced immediately. Unopened items eligible for return within policy guidelines.

04

100% Authentic Guarantee

Verified authentic parts from authorized manufacturers. Every item includes traceable documentation for genuine quality.

Fast Shipping — Ships within Our Shipping timeline for out of stock items is: 2-4 Weeks business days

Policy Overview

Our Commitment to You

Return Policy

30-Day Return Policy

Easy returns within 30 days of delivery

Return Policy: 30 Day Return Policy all items; has to be approved by Bimmer Plug for valid reason.
  • Items must be unused, uninstalled, and in original packaging
  • Custom or special-order products are non-returnable unless defective
  • Return authorization required before shipping
  • Approved refunds processed within 5–7 business days
Customer Support

Expert Customer Support

Monday-Friday, 10am-5pm PST

Customer Support +1 (949) 229-3397 Text or Call in (Sales + Customer/Order Support) support@bimmerplug.com +1 (949) 207-9246 Text in only (Technical Support/Installation)
support@bimmerplug.com Email +1(949) 229-3397 Customer Support +1 (949) 207-9146 Technical Support
Trusted by 20,000+ car owners

What Our Customers Say

4.9 out of 5 stars from over 3,500 reviews

See Customer Builds

CUSTOMIZE IT YOUR WAY

BUILD YOUR KIT

Select your model, then browse categories to pick parts for your build.

STEP 1 — SELECT BRAND

Support

Frequently Asked Questions

Find clear answers about fitment, installation, and what to expect before you place an order.

Fast Answers No Guesswork

LOGISTICS

Installation & Pickup

Choose the installation method that works best for you. Whether you prefer DIY, professional installation, or local pickup, we provide flexible options designed around your schedule and expertise level.

M4 Style Carbon Fiber Trunk Spoiler - BMW G80 M3 & G20 3 Series
01

Self Installation

Perfect for DIY enthusiasts who prefer hands-on experience

✓ Installs in 30-45 minutes
✓ Professional Installation Required
✓ Yes, fully reversible
02

Professional Installation

Expert certified technicians at your service

✓Compatible with BMW specialists
✓No coding required
✓Quick service appointment
Local Pickup
03

Local Pickup

Convenient pickup at your preferred location

✓Available at select locations
✓Contact support to arrange
✓Immediate availability

Professional Installation Services

Our network of certified BMW specialists provides expert installation services across multiple locations. Each technician is trained on our products and follows manufacturer-recommended installation procedures to ensure optimal performance and warranty compliance.

✓

Same-day and next-day appointments available

Flexible scheduling to fit your busy lifestyle

✓

Competitive labor rates and transparent pricing

No hidden fees or unexpected charges

✓

OEM-approved tools and diagnostic equipment

Precision installation using the same tools trusted by dealerships

✓

Post-installation inspection and performance verification

Every install is tested and reviewed to ensure proper fit, function, and system integrity

✓

Installation warranty included with service

Peace of mind with comprehensive warranty coverage

Ready to Get Started?

View our complete installation services and pricing options

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