The Porsche 718, renowned for its mid-engine balance and agile performance, offers enthusiasts a versatile platform for customization. Among the most sought-after modifications is retrofitting the Porsche body kit inspired by the GTS SportDesign (SD) package—a blend of aerodynamic efficiency and motorsport-inspired aesthetics. This upgrade not only sharpens the 718’s visual aggression but also enhances its track-ready capabilities. In this guide, we explore the components, benefits, and technical considerations of upgrading a Porsche 718 to the GTS SD body kit, transforming it into a head-turning performance machine.

What Is the GTS SportDesign Body Kit?

The GTS SportDesign body kit is a factory-approved aerodynamic package designed to emulate the styling and functional elements of Porsche’s high-performance GTS models. Key features include:

• SportDesign Front Bumper: Aggressive front fascia with enlarged air intakes, vertical slats, and a prominent splitter to optimize airflow to radiators and brakes26.

• Wider Side Skirts: Sculpted rocker panels that extend the car’s visual width and reduce turbulence along the chassis8.

• Rear Diffuser and Fixed Wing: A race-inspired rear diffuser with vertical fins and a fixed rear spoiler, replacing the standard active rear wing for improved downforce25.

• Exhaust and Trim Accents: Quad exhaust tips and black or carbon fiber accents on grilles, mirror caps, and diffusers for a cohesive, high-contrast aesthetic8.

This kit bridges the gap between the base 718’s elegance and the GTS’s track-focused persona, making it a popular choice for enthusiasts seeking an OEM+ look.

Why Upgrade to the GTS SD Body Kit?

1. Aerodynamic Performance
   The GTS SD kit is engineered to enhance stability at high speeds. For example, the front splitter reduces lift by directing airflow beneath the car, while the rear diffuser accelerates underbody airflow to balance downforce26. The fixed rear wing, inspired by the 911 RSR GT race car, generates up to 20% more downforce compared to the standard retractable spoiler2.

2. Weight Reduction and Material Quality
   Many GTS SD components use lightweight materials like carbon fiber-reinforced plastic (CFRP) for parts such as the front splitter, side skirts, and rear diffuser. Porsche’s Weissach Package further reduces weight through carbon fiber hoods and lightweight glass25.

3. Visual Transformation
   The kit’s widened stance, achieved via flared wheel arches, mirrors the GTS’s muscular profile. Black or carbon fiber accents on intakes, mirror caps, and exhaust tips create a striking contrast against the body color8.

4. Resale Value
   Factory-aligned upgrades like the GTS SD kit are highly desirable in the pre-owned market, often justifying their cost through increased buyer interest5.

Key Components and Installation

1. Front Bumper and Splitter

The GTS SD front bumper features larger air intakes and a splitter designed to improve brake cooling and reduce front-end lift. Installation requires precise alignment to retain functionality for parking sensors and radar systems26.

2. Side Skirts and Wheel Arch Extensions

Extended side skirts smooth airflow along the chassis, while bolt-on wheel arch extensions widen the track by approximately 1.5 inches. These components demand professional fitting to avoid gaps or misalignment8.

3. Rear Diffuser and Fixed Wing

The rear diffuser’s vertical fins manage exhaust airflow, while the fixed wing—available in carbon fiber or gloss black—requires removal of the active spoiler mechanism. Some kits integrate a third brake light for compliance56.

4. Exhaust System

While not part of the standard kit, many owners pair the GTS SD upgrade with quad exhaust tips or a sport exhaust system for a cohesive look and enhanced acoustics8.

Performance and Practical Considerations

1. Material Choices

• Carbon Fiber: Offers weight savings and durability but increases costs (e.g., 5,000–5,000–10,000 for full carbon components)25.

• OEM vs. Aftermarket: Porsche Tequipment-certified kits ensure perfect fitment, while aftermarket options (e.g., TechArt, Vorsteiner) provide customization at lower costs6.

2. Suspension and Handling
   To maximize the kit’s aerodynamic benefits, consider upgrading to Porsche Active Suspension Management (PASM) or sport springs, which lower the chassis by 10 mm for improved stability57.

3. Wheel and Tire Setup
   The GTS SD kit pairs well with 20-inch lightweight alloy wheels (e.g., Carrera S design) wrapped in high-performance tires (235/35 front, 265/35 rear) to fill the widened arches8.

4. Track Readiness
   The kit’s aerodynamic enhancements are validated on circuits like the Nürburgring, where Porsche’s GT models excel. For track use, complement the kit with ceramic composite brakes (PCCB) and a reinforced chassis57.

Cost Breakdown

• GTS SD Body Kit: 12,000–12,000–25,000 (depending on materials and brand)25.

• Installation Labor: 3,000–3,000–6,000 (Porsche-certified technicians recommended)6.

• Optional Upgrades:

• Carbon fiber components: +5,000–5,000–10,000.

• Sport Exhaust System: 4,000–4,000–7,000.

• PASM Suspension: 3,500–3,500–5,0005.

Challenges and Solutions

1. Fitment Precision
   Aftermarket kits may require adjustments to align with the 718’s body lines. Professional installers use laser-cut templates for OEM-level accuracy6.

2. Legal Compliance
   Fixed rear wings or aggressive splitters may violate regional regulations. Consult local laws to avoid fines or inspection issues5.

3. Warranty Preservation
   Non-OEM parts could void Porsche’s factory warranty. Opt for Porsche Tequipment-certified components to maintain coverage7.

Conclusion: Elevating the 718 to GTS Glory

Retrofitting the GTS SportDesign body kit to the Porsche 718 is a transformative project that merges form and function. This Porsche body kit not only amplifies the car’s visual drama but also unlocks race-derived aerodynamics, making it a formidable contender on both road and track. While the upgrade demands careful planning and investment, the result is a bespoke 718 that embodies Porsche’s motorsport heritage.

For enthusiasts seeking to blend daily usability with track-inspired aggression, the GTS SD kit offers the ultimate balance—a testament to the 718’s adaptability and Porsche’s commitment to engineering excellence.