The Ultimate Tesla Model 3 Upgrade Guide: ACS Composite’s Complete Aero Line

The Tesla Model 3 is a benchmark of EV innovation—sleek, fast, and efficient. But even great can be improved. At ACS Composite, we believe every vehicle deserves the perfect blend of performance, protection, and style. That’s why we’re bringing decades of aerodynamic expertise—honed designing components for performance icons like the Chevrolet Corvette and trusted by owners worldwide—directly to the Tesla community.

Our complete lineup of Tesla Model 3 aero upgrades is engineered to enhance your car’s looks, performance, and durability. Crafted from premium materials and manufactured in North America, these accessories offer tangible benefits. Whether you’re aiming for a sportier stance, stronger paint protection against road debris, or optimized airflow for enhanced stability, our collection delivers.

In this guide, we’ll break down each ACS Composite component for the Tesla Model 3—what it does, why it matters, and how it transforms your Tesla.

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Why Upgrade Your Tesla Model 3?

Tesla’s design is already revolutionary, but factory components often balance mass-market appeal with potential compromises in specific areas like protection or fine-tuned aerodynamics. Aftermarket upgrades like front splitters, spoilers, side rockers, and rock guards can significantly transform your Model 3 by:

• Enhancing aerodynamic performance and managing airflow.
• Reducing lift and improving high-speed stability through functional downforce.
• Providing vital protection for vulnerable paintwork from road debris, rock chips, and environmental factors.
• Boosting curb appeal and potentially resale value with a sportier, more aggressive, or refined appearance.

At ACS Composite, our Tesla Model 3 upgrades are meticulously crafted from high-impact, heat-resistant PC Composite material and finished in a sleek gloss black, ensuring long-lasting performance and a premium OEM+ aesthetic that complements your vehicle.

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ACS Composite Tesla Model 3 Product Line

🚀 Tesla Model 3 Front Splitter

The ACS M3 Front Splitter optimizes front-end aerodynamics by reducing lift and enhancing downforce for improved handling—without compromising the Model 3’s outstanding efficiency. Crafted from durable, heat-resistant, and impact-proof PC Composite, this splitter is built to handle everything from highway speeds to minor road scrapes, offering superior resilience compared to standard ABS plastic parts. Its design also helps minimize wind resistance while adding a sporty touch.

Key Benefits:

• Reduces front-end lift for better handling and stability.
• Maintains aerodynamic efficiency, preserving range.
• Striking Gloss black finish for a sleek, aggressive look.
• Uses OEM mounting points with included hardware for a secure fit (rivets add extra security).

Shop the ACS Tesla Model 3 Front Splitter

Need installation help? View our Step-by-Step Installation Guide or watch the video below.

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🛡️ Tesla Model 3 Rocker Panels

Protect your Model 3’s vulnerable lower side bodywork with the ACS Rocker Panels. These robust panels replace the OEM lower belly panels, offering significantly increased undercarriage and side coverage against rock chips and road debris. Made from durable PC Composite, they also improve lateral airflow for better high-speed stability and are designed to prevent dirt and moisture buildup unlike the factory part.

Key Benefits:

• Shields lower rocker panels against rock chips, debris, and potential corrosion.
• Can cover existing minor damage and prevents future issues.
• Improves lateral airflow management along the vehicle sides.
• Quick install using factory mounting points (approx. 30 minutes per side).
• Sportier styling queue in a matching Gloss Black finish.

Shop the ACS Tesla Model 3 Rocker Panels

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🦾 Tesla Model 3 Rear Spoiler

A must-have for many Tesla enthusiasts, the ACS Composite Rear Spoiler perfectly balances subtlety and sportiness. Made via plastic injection for precision and heat resistance, it extends the trunk line elegantly. Two integrated wickers provide functional yet balanced downforce, enhancing the car's sporty look while preserving Tesla’s minimalistic design and aerodynamic profile.

Key Benefits:

• Adds a distinct, sporty aesthetic without being overly aggressive.
• Enhances downforce slightly with minimal impact on drag.
• Premium Gloss black finish for a seamless OEM+ look.
• Easy, no-drill peel-and-stick installation using pre-installed 3M tape and included templates.

Shop the ACS Tesla Model 3 Rear Spoiler

Watch the easy installation process:

For written instructions, check out our Spoiler Installation Guide.

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🛡️ Tesla Model 3 Rear Rock Guards & Fascia Extension

For maximum paint protection where it's needed most, the innovative ACS Rock Guard & Fascia Extension safeguards the vulnerable areas behind the rear wheels and the rear bumper fascia corners from rock spray and road debris. Unlike bulky, drag-inducing mudguards, this sleek PC Composite design integrates beautifully, maintaining Tesla’s aerodynamic integrity while providing significantly extended coverage.

Key Benefits:

• Protects critical rear quarter and fascia areas against chipping and road rash.
• Low-drag, functional design integrates smoothly for an OEM+ appearance.
• Durable, high-impact PC Composite construction ensures longevity.
• Gloss black finish matches Tesla trim and other ACS components.
• Secure mounting using factory points and supplied bracket (minor liner drilling required).

Shop the ACS Tesla Model 3 Rock Guards & Fascia Extension

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🔥 Tesla Model 3 AeroPack

Looking for the ultimate, cohesive upgrade? The ACS Composite AeroPack combines our top-selling Model 3 aerodynamic and protection products into one complete, value-driven package for a total vehicle transformation.

Includes:

• ACS Model 3 Front Splitter
• ACS Model 3 Rocker Panels (Pair)
• ACS Model 3 Rear Spoiler
• ACS Model 3 Rock Guards & Fascia Extension (Pair)

Why Choose the AeroPack?

• Synergistic Performance: Components designed to work together for optimized aerodynamics.
• Comprehensive Protection: Shields vulnerable areas from front to back.
• Cohesive Styling: Creates a unified, sporty look with matching Gloss Black finishes.
• Exceptional Value: Bundles key upgrades for savings.
• Guaranteed Fit & Quality: Premium PC Composite, engineered for perfect fitment.

It’s the perfect, all-in-one solution for Tesla owners wanting a full performance and protection makeover.

Shop the Complete ACS Tesla Model 3 AeroPack

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What Sets ACS Composite Apart?

• North American Made: Unlike many overseas parts providers, our Tesla products are proudly designed, engineered, and manufactured in North America, ensuring superior quality control, fitment, and responsive customer support.

• Premium Materials: We exclusively use our proprietary PC Composite material—a high-performance thermoplastic known for its exceptional impact strength, heat resistance, and durability. It's significantly stronger, more resilient against scrapes, and better-looking than standard ABS or polyurethane plastics, resisting warping and cracking.

• OEM-Level Fitment: Leveraging OEM vehicle data, our products are engineered to utilize your Model 3’s existing mounting points wherever possible, ensuring seamless, often reversible installation and perfect alignment.

• Tested & Proven Expertise: With a rich heritage in developing aerodynamic components for demanding performance vehicles like the Corvette, we bring motorsport-level precision, quality, and functional design to the Tesla community.

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How to Get Started

Ready to take your Tesla Model 3 to the next level? Browse the full ACS Composite Tesla Model 3 collection online and discover how easy it is to add lasting performance, protection, and style to your ride. Each product page features detailed information, images, and installation resources.

If you're a Tesla content creator, influencer, or shop owner interested in showcasing high-quality, North American-made accessories, get in touch! We offer partnership opportunities and affiliate programs. Let’s electrify the road—together.

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📈 Related Reading

• Why PC Composite is the Best Material for Tesla Aero Parts
• Watt the Zap? ACS Composite Releases a Line of Products for the Tesla Model 3

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By choosing ACS Composite, you’re not just upgrading your Tesla—you’re investing in precision engineering, exceptional durability, and functional performance enhancements that truly last.