Carbon Fiber Parts

BMW G20 3Series Carbon Fiber Rear Diffuser | AC Aerodynamic Package

OEM/ODM · 100% Fitment · Global Shipping · Customization Available

This AC style carbon fiber rear diffuser is produced by JC AUTOCARBON for the BMW G20 3 Series. It brings the AC Schnitzer look to the rear bumper. Real carbon fiber keeps it light and strong. MOQ 20 units, private label available.

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Product Details

Studio Shots / Detail Shots

Size & Weight

Measured & Weighed / Dimensions & Weight

Specifications
Brand
BMW
Model
3 Series
Part Category
Rear Diffuser
SKU
GSKU-1803
Year
2019-Present
Material
Carbon Fiber
Net Weight
0.62 kg
Gross Weight
4 kg
Product Size
15.6 × 29.3 × 13.3 cm
Package Size
158*35*20/JC-纸箱1684
Vehicle Fitments
BMW 3 SERIES G20/G28 · 2019–Present · STANDARD
Package
BMW 3 Series Carbon Fiber Aerodynamic kits
Installation Guide
Carbon Fiber Rear Diffuser Installation Guide: Bumper Removal, Sensors & Factory Clips →
Three Ways to Work With Us

What Can You Customize & How We Work With You

In-stock parts shipping from overseas warehouses, made-to-order production from existing molds, or full custom development from your drawings — pick the model that fits your business.

Most products shown on this site are stocked in our fixed overseas warehouses in China, the US, and other partner regions, with warehouse fulfillment supported. Before ordering, you can confirm stock and pricing with us — availability and prices vary by region.

Best for Individual Buyers — combo purchase Dropshipping Partners
We Ship For You

One Piece or Many — Packed & Shipped

From our overseas warehouse directly to your end customer. One piece at a time, or multiple items combined in a single parcel — you focus on sales, we handle packing and last-mile handover.

  • Ships from overseas warehouses
  • Single or multi-item fulfillment
  • No inventory investment required
Confirm Before Ordering

Check Stock & Price by Region

Inventory levels and pricing differ between regions. Send us the part, your destination country, and quantity — we'll confirm live stock and a region-specific price before you commit.

  • Live stock confirmation
  • Region-specific pricing
  • Reply within 12 hours on business days
Already Selling Worldwide Our parts are sold to end customers every day by resell partners on Amazon, eBay, and AliExpress. Some partners dropship directly from our overseas warehouses; others buy in bulk and fulfill orders themselves. Whichever model fits your business, you'll be selling products with proven demand in the global aftermarket.
How Fast It Moves
Within 12 hrs Confirm Stock & Price Send part, destination & quantity — we confirm live stock and regional pricing.
Day 1 Order Confirmed Payment confirmed, order locked to the warehouse nearest your customer.
1–3 days · est. Packed & Shipped Single or multi-item parcels packed and handed to the carrier from our overseas warehouse.
3–7 days · est. Delivered Local last-mile delivery to your end customer. Timing varies by region.

* Times marked est. are typical estimates — we confirm exact timing for your destination before you order.

Confirm Stock & Price Browse all parts

Every product on this site has been produced before — the molds already exist. No tooling fees, no waiting for mold development: pick your material, weave, finish and color, and production starts as soon as your order is confirmed. Send us an inquiry and we'll confirm mold availability for your model within 12 hours.

Best for Wholesalers Resellers Distributors Mixed-model orders · overseas warehouse stocking
Material Options

Material

Wet carbon, dry carbon (prepreg), or FRP — matched to how the part is used.

Weave Patterns

Weave Pattern

2×2 twill, 1×1 plain, forged carbon, hybrid weave, Kevlar mix.

Surface Finish

Surface Finish

High-gloss, matte / satin, UV-protection coating as standard.

Color Effects

Color Effect

Beyond black — Kevlar hybrids, candy tints, Texalium, flake forged.

Production Timeline
Within 12 hrs Confirm Mold & Quote We check the mold for your model and spec, then confirm pricing and lead time.
7–15 days · est. Production Manufacturing starts from the existing mold as soon as the order is confirmed — no tooling wait.
1–2 days · est. QC & Export Packing Surface, fitment and finish inspected piece by piece; export-grade packaging.
5–35 days · est. Ship or Stock Overseas Air freight for speed, sea freight for volume — or stock directly in our overseas warehouse.

* Times marked est. are typical estimates and vary with quantity, finish and destination — confirmed in your quote.

Confirm Mold Availability See full customization details

Need something that doesn't exist yet? We develop fully customized parts based on your target vehicle, CAD files, or design drawings — with dedicated mold tooling quoted separately. From a single trim piece to a complete body kit program, engineered and produced under your brand.

Best for Brand Owners Racing Teams OEM / ODM — Build Your Brand
From Drawings to Production

Full Custom Development

3D scanning, fitment validation, structure design, mold tooling, prototyping and mass production — one engineering team handles the entire process.

  • Custom design & engineering support
  • Prototype in days, production at up to 1,000 parts per day
  • MOQ from 20 units per part
Private Label

Produced Under Your Brand

Your logo, your packaging, your product line. We stay behind the scenes as your manufacturing partner — designs and molds developed for you stay exclusive to you.

  • Private label packaging available
  • OEM & ODM programs
  • Design & IP protection
Development Timeline
D1–D7 Requirement Alignment Target vehicle, design intent, quantity and brand requirements confirmed.
D8–D14 Feasibility & Engineering Plan Structure, material and mold solution reviewed — free feasibility report.
D15–D30 Prototype Development 3D design, CNC mold machining and first sample production.
D31–D50 Process & Tooling Validation Real-vehicle fitment checks, mold fine-tuning and surface validation.
D51–D58 Final Sample & QC Mass-production standard locked after your approval — then batch production begins.

* After design data is confirmed, most projects complete first samples in 45–58 days. Early design and confirmation time are not included.

Send Your Drawings See the prototyping process Development timeline

START YOUR
Project

Factory-Direct Carbon Fiber,
Built for You

Custom parts engineered and manufactured in-house — from one-off samples to bulk orders.

19+ Years Manufacturing 1,000 Parts / Day Capacity Reply within 12 Hours

Free quote · No obligation · Takes about 1 minute

In a hurry? Chat on WhatsApp →

Working hours: Monday – Saturday, 9:00 – 18:00 (GMT+8)

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Front Lip BMW E90 3 Series Carbon Fiber Front Lip
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Mirror Cover BMW E90 3 Series Carbon Fiber Mirror Covers
Mirror Cover BMW E90 3 Series Carbon Fiber Mirror Covers
Mirror Cover BMW E90 3 Series Carbon Fiber Mirror Covers
Mirror Cover BMW E90 3 Series Carbon Fiber Mirror Covers
Mirror Cover BMW E90 3 Series Carbon Fiber Mirror Covers
Rear Diffuser BMW E90 3 Series Carbon Fiber Rear Diffuser
Rear Diffuser BMW E90 3 Series Carbon Fiber Rear Diffuser
Rear Diffuser BMW E90 3 Series Carbon Fiber Rear Diffuser
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Rear Spoiler BMW E90 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW E90 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW E90 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW E90 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW E90 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW E90 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW E90 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW E90 3 Series Carbon Fiber Roof Spoiler
Trunk Lid BMW E90 3 Series Carbon Fiber Trunk Lid
Trunk Lid BMW E90 3 Series Carbon Fiber Trunk Lid
Rear Spoiler BMW E90 3 Series FRP Rear Spoiler
Trunk Lid BMW E90 3 Series FRP Trunk Lid
Mirror Cover BMW E90 3series Carbon Fiber + ABS Mirror Cover | Body Kit
Mirror Cover BMW E90 3series Carbon Fiber + ABS Mirror Cover | Body Kit
Apron BMW E90 3series Carbon Fiber Apron | Aerodynamic Package
Apron BMW E90 3series Carbon Fiber Apron | Aerodynamic Package
Apron BMW E90 3series Carbon Fiber Apron | Aerodynamic Package
Apron BMW E90 3series Carbon Fiber Apron | Aerodynamic Package
Canards BMW E90 3Series Carbon Fiber Canards | Aerodynamic Package
Front Lip BMW E90 3series Carbon Fiber Front Lip | AC Aerodynamic Package
Front Lip BMW E90 3series Carbon Fiber Front Lip | GTS Aerodynamic Package
Mirror Cover BMW E90 3series Carbon Fiber Mirror Cover | Body Kit
Mirror Cover BMW E90 3series Carbon Fiber Mirror Cover | Body Kit
Rear Diffuser BMW E90 3series Carbon Fiber Rear Diffuser | Aerodynamic Package
Rear Spoiler BMW E90 3series Carbon Fiber Rear Spoiler | AC Aerodynamic Package
Rear Spoiler BMW E90 3Series Carbon Fiber Rear Spoiler | CS Aerodynamic Package
Rear Spoiler BMW E90 3series Carbon Fiber Rear Spoiler | CSL Aerodynamic Package
Rear Spoiler BMW E90 3Series Carbon Fiber Rear Spoiler | M4 Aerodynamic Package
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Front Lip BMW E92 3 Series Carbon Fiber Front Lip
Front Lip BMW E92 3 Series Carbon Fiber Front Lip
Eye Lid BMW E92 3 Series Carbon Fiber Headlight Eyelids
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Mirror Cover BMW E92 3 Series Carbon Fiber Mirror Covers
Mirror Cover BMW E92 3 Series Carbon Fiber Mirror Covers
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Rear Spoiler BMW E92 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW E92 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW E92 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW E92 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW E92 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW E92 3 Series Carbon Fiber Roof Spoiler
Rear Spoiler BMW E92 3 Series Carbon Fiber Roof Spoiler
Side Skirts BMW E92 3 Series Carbon Fiber Side Skirts
Trunk Lid BMW E92 3 Series Carbon Fiber Trunk Lid
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Rear Spoiler BMW E92 3 Series FRP Rear Spoiler
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Rear Spoiler BMW E93 3series FRP Rear Spoiler | Performance Aerodynamic Package
Mirror Cover BMW F20 1 2 3 4 Dry Carbon Fiber Mirror Cover | Body Kit
Mirror Cover BMW F20 2/3Series Carbon Fiber Mirror Cover | Body Kit
Mirror Cover BMW F22 2 Series Carbon Fiber Mirror Covers
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Bumper Spats BMW F30 3 Series Carbon Fiber Front Bumper Spats
Bumper Spats BMW F30 3 Series Carbon Fiber Front Bumper Spats
Grille BMW F30 3 Series Carbon Fiber Front Grille
Grille BMW F30 3 Series Carbon Fiber Front Grille
Grille BMW F30 3 Series Carbon Fiber Front Grille
Front Lip BMW F30 3 Series Carbon Fiber Front Lip
Front Lip BMW F30 3 Series Carbon Fiber Front Lip
Front Lip BMW F30 3 Series Carbon Fiber Front Lip
Front Lip BMW F30 3 Series Carbon Fiber Front Lip
Vents BMW F30 3 Series Carbon Fiber Front Vents
Eye Lid BMW F30 3 Series Carbon Fiber Headlight Eyelids
Hood BMW F30 3 Series Carbon Fiber Hood
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Mirror Cover BMW F30 3 Series Carbon Fiber Mirror Covers
Mirror Cover BMW F30 3 Series Carbon Fiber Mirror Covers
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Rear Diffuser BMW F30 3 Series Carbon Fiber Rear Diffuser
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Rear Spoiler BMW F30 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW F30 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW F30 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW F30 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW F30 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW F30 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW F30 3 Series Carbon Fiber Rear Spoiler
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Apron BMW F30 3Series Carbon Fiber Apron | Aerodynamic Package
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Rear Diffuser BMW F30 3Series Carbon Fiber Rear Diffuser | Aerodynamic Package
Rear Diffuser BMW F30 3Series Carbon Fiber Rear Diffuser | Aerodynamic Package
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Rear Diffuser BMW F30 3Series Carbon Fiber Rear Diffuser | Performance Aerodynamic Package
Side Skirts BMW F30 3Series Carbon Fiber Side Skirts | M-Sport Aerodynamic Package
Vents BMW F30 3Series Carbon Fiber Side Vents | Aerodynamic Package
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Front Lip BMW F34 3 Series Carbon Fiber Front Lip
Front Lip BMW F34 3 Series Carbon Fiber Front Lip
Front Lip BMW F34 3 Series Carbon Fiber Front Lip
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Rear Diffuser BMW F34 3 Series Carbon Fiber Rear Diffuser
Rear Diffuser BMW F34 3 Series Carbon Fiber Rear Diffuser
Rear Diffuser BMW F34 3 Series Carbon Fiber Rear Diffuser
Rear Spoiler BMW F34 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW F34 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW F34 3 Series Carbon Fiber Rear Spoiler
Side Skirts BMW F34 3 Series Carbon Fiber Side Skirts
Side Skirts BMW F34 3 Series Carbon Fiber Side Skirts
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Front Lip BMW F34 3 Series FRP Front Lip
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Rear Diffuser BMW F34 3 Series FRP Rear Diffuser
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Rear Spoiler BMW F80 3Series Carbon Fiber Rear Spoiler | 3D Aerodynamic Package
Rear Spoiler BMW F80 3Series Carbon Fiber Rear Spoiler | AC Aerodynamic Package
Rear Spoiler BMW F80 3Series Carbon Fiber Rear Spoiler | CS Aerodynamic Package
Rear Spoiler BMW F80 3Series Carbon Fiber Rear Spoiler | M Aerodynamic Package
Rear Spoiler BMW F80 3Series Carbon Fiber Rear Spoiler | M4 Aerodynamic Package
Rear Spoiler BMW F80 3Series Carbon Fiber Rear Spoiler | ML Aerodynamic Package
Rear Spoiler BMW F80 3Series Carbon Fiber Rear Spoiler | Performance Aerodynamic Package
Rear Spoiler BMW F80 3Series Carbon Fiber Rear Spoiler | Performance Aerodynamic Package
Rear Spoiler BMW F80 3Series Carbon Fiber Rear Spoiler | PSM Aerodynamic Package
Side Skirts BMW F80 3Series Carbon Fiber Side Skirts | MP Aerodynamic Package
Rear Spoiler BMW F80 3Series Dry Carbon Fiber Rear Spoiler | CS Aerodynamic Package
Rear Spoiler BMW F80 3Series Dry Carbon Fiber Rear Spoiler | DA Aerodynamic Package
Rear Spoiler BMW F80 3Series Dry Carbon Fiber Rear Spoiler | M4 Aerodynamic Package
Rear Spoiler BMW F80 3Series Dry Carbon Fiber Rear Spoiler | ML Aerodynamic Package
Rear Spoiler BMW F80 3Series Dry Carbon Fiber Rear Spoiler | P Aerodynamic Package
Rear Spoiler BMW F80 3Series Dry Carbon Fiber Rear Spoiler | PSM Aerodynamic Package
Rear Spoiler BMW F80 3Series FRP Rear Spoiler | 3D Aerodynamic Package
Rear Spoiler BMW F80 3Series FRP Rear Spoiler | 3D Aerodynamic Package
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Front Lip BMW G20 3 Series Carbon Fiber Front Lip
Front Lip BMW G20 3 Series Carbon Fiber Front Lip
Front Lip BMW G20 3 Series Carbon Fiber Front Lip
Front Lip BMW G20 3 Series Carbon Fiber Front Lip
Front Lip BMW G20 3 Series Carbon Fiber Front Lip
Front Lip BMW G20 3 Series Carbon Fiber Front Lip
Front Lip BMW G20 3 Series Carbon Fiber Front Lip
Front Lip BMW G20 3 Series Carbon Fiber Front Lip
Front Lip BMW G20 3 Series Carbon Fiber Front Lip
Vents BMW G20 3 Series Carbon Fiber Front Vents
Hood BMW G20 3 Series Carbon Fiber Hood
Mirror Cover BMW G20 3 Series Carbon Fiber Mirror Covers
Mirror Cover BMW G20 3 Series Carbon Fiber Mirror Covers
Mirror Cover BMW G20 3 Series Carbon Fiber Mirror Covers
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Rear Diffuser BMW G20 3 Series Carbon Fiber Rear Diffuser
Rear Diffuser BMW G20 3 Series Carbon Fiber Rear Diffuser
Rear Diffuser BMW G20 3 Series Carbon Fiber Rear Diffuser
Rear Diffuser BMW G20 3 Series Carbon Fiber Rear Diffuser
Rear Diffuser BMW G20 3 Series Carbon Fiber Rear Diffuser
Rear Diffuser BMW G20 3 Series Carbon Fiber Rear Diffuser
Rear Diffuser BMW G20 3 Series Carbon Fiber Rear Diffuser
Rear Diffuser BMW G20 3 Series Carbon Fiber Rear Diffuser
Rear Diffuser BMW G20 3 Series Carbon Fiber Rear Diffuser
Rear Diffuser BMW G20 3 Series Carbon Fiber Rear Diffuser
Rear Diffuser BMW G20 3 Series Carbon Fiber Rear Diffuser
Rear Spoiler BMW G20 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW G20 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW G20 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW G20 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW G20 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW G20 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW G20 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW G20 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW G20 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW G20 3 Series Carbon Fiber Rear Spoiler
Rear Spoiler BMW G20 3 Series Carbon Fiber Roof Spoiler
Side Skirts BMW G20 3 Series Carbon Fiber Side Skirts
Side Skirts BMW G20 3 Series Carbon Fiber Side Skirts
Side Skirts BMW G20 3 Series Carbon Fiber Side Skirts
Trunk Lid BMW G20 3 Series Carbon Fiber Trunk Lid
Grille BMW G20 3 Series Dry Carbon Fiber Front Grille
Mirror Cover BMW G20 3 Series Dry Carbon Fiber Mirror Covers
Canards BMW G20 3 Series Dry Carbon Fiber Rear Canards
Rear Spoiler BMW G20 3 Series Dry Carbon Fiber Rear Spoiler
Rear Spoiler BMW G20 3 Series Dry Carbon Fiber Rear Spoiler
Rear Spoiler BMW G20 3 Series Dry Carbon Fiber Rear Spoiler
Rear Spoiler BMW G20 3 Series Dry Carbon Fiber Rear Spoiler
Exterior Accessories BMW G20 3 Series Dry Carbon Fiber Shark Fin Cover
Side Skirts BMW G20 3 Series Dry Carbon Fiber Side Skirts
Front Lip BMW G20 3Series Carbon Fiber Front Lip | 3D Aerodynamic Package
Front Lip BMW G20 3Series Carbon Fiber Front Lip | AC Aerodynamic Package
Front Lip BMW G20 3Series Carbon Fiber Front Lip | Aerodynamic Package
Front Lip BMW G20 3Series Carbon Fiber Front Lip | Aerodynamic Package
Front Lip BMW G20 3Series Carbon Fiber Front Lip | Aerodynamic Package
Front Lip BMW G20 3Series Carbon Fiber Front Lip | H Aerodynamic Package
Front Lip BMW G20 3Series Carbon Fiber Front Lip | JC Aerodynamic Package
Front Lip BMW G20 3Series Carbon Fiber Front Lip | JC Aerodynamic Package
Front Lip BMW G20 3Series Carbon Fiber Front Lip | MP Aerodynamic Package
Hood BMW G20 3Series Carbon Fiber Hood | GTS Body Kit
Rear Diffuser BMW G20 3Series Carbon Fiber Rear Diffuser | 3D Aerodynamic Package
Rear Diffuser BMW G20 3Series Carbon Fiber Rear Diffuser | Aerodynamic Package
Rear Diffuser BMW G20 3Series Carbon Fiber Rear Diffuser | Aerodynamic Package
Rear Diffuser BMW G20 3Series Carbon Fiber Rear Diffuser | MP Aerodynamic Package
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Rear Spoiler BMW G20 3Series Carbon Fiber Rear Spoiler | Aerodynamic Package
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Rear Spoiler BMW G20 3Series Carbon Fiber Rear Spoiler | JC Aerodynamic Package
Rear Spoiler BMW G20 3Series Carbon Fiber Rear Spoiler | M Aerodynamic Package
Rear Spoiler BMW G20 3Series Carbon Fiber Rear Spoiler | M4 Aerodynamic Package
Rear Spoiler BMW G20 3Series Carbon Fiber Rear Spoiler | Performance Aerodynamic Package
Rear Spoiler BMW G20 3Series Carbon Fiber Rear Spoiler | Performance Aerodynamic Package
Trunk Lid BMW G20 3Series Carbon Fiber Rear Trunk | JC Body Kit
Side Skirts BMW G20 3Series Carbon Fiber Side Skirts | Aerodynamic Package
Side Skirts BMW G20 3Series Carbon Fiber Side Skirts | Aerodynamic Package
Side Skirts BMW G20 3Series Carbon Fiber Side Skirts | Aerodynamic Package
Canards BMW G20 3Series Dry Carbon Fiber Canards | Aerodynamic Package
Eye Lid BMW G20 3Series Dry Carbon Fiber Eye Lid | Body Kit
Rear Diffuser BMW G20 3Series Dry Carbon Fiber Rear Diffuser | MP Aerodynamic Package
Rear Spoiler BMW G20 3Series Dry Carbon Fiber Rear Spoiler | CS Aerodynamic Package
Rear Spoiler BMW G20 3Series Dry Carbon Fiber Rear Spoiler | M Aerodynamic Package
Rear Spoiler BMW G20 3Series Dry Carbon Fiber Rear Spoiler | M4 Aerodynamic Package
Rear Spoiler BMW G20 3Series Dry Carbon Fiber Rear Spoiler | MP Aerodynamic Package
Rear Spoiler BMW G20 3Series DZW Rear Spoiler | PSM Aerodynamic Package
Rear Spoiler BMW G21 3Series Carbon Fiber Rear Spoiler | Aerodynamic Package
Canards BMW G28 3 Series Carbon Fiber Front Canards
Rear Diffuser BMW G28 3 Series Carbon Fiber Rear Diffuser
Interior Trim BMW G28 3 Series Dry Carbon Fiber Interior Trim
Interior Trim BMW G28 3Series Dry Carbon Fiber Interior Trim | Interior Package

SELECTED CUSTOM packages

BMW 3 Series
BMW 3 Series Carbon Fiber Aerodynamic kits
Why Choose JC AUTOCARBON

Engineering-Driven Carbon Fiber Manufacturing

JC AUTOCARBON is the automotive-focused platform powered by JCSPORTLINE’s global carbon fiber engineering and manufacturing capabilities.

Built on years of composite engineering experience, we provide complete support from product concept, engineering development, and tooling to mass production.

Through JC AUTOCARBON, automotive professionals and brands access reliable carbon fiber solutions backed by proven manufacturing capability.

150,000 m²

Manufacturing Area

80+

CNC Machines

1,000+

Parts & Sets Per Day

5,000+

Completed Projects

ISO 9001 · IATF 16949 · CE Certified Quality Management

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