Porsche 718 Spyder RS/GT4RS Tuning Guide

The Porsche 718 GT4 RS and Boxster Spyder RS 4.0, introduced from 2022 onwards, are some of the most capable cars on both the road and track. With their precise handling, remarkable performance, and engineering excellence, these vehicles are already finely tuned straight from the factory. For this reason, modifications to the 718 GT4 RS and Spyder RS are relatively sparse compared to more mainstream sports cars. However, for those owners who want to personalise their vehicles or enhance performance, there are a few key areas to consider.

Why Modifications Are Limited

Both the Cayman GT4 RS and Boxster Spyder RS are already near-perfect from a performance standpoint. These models feature a 4.0-litre naturally aspirated engine and track-oriented suspension, making them exceptionally capable on the circuit and exhilarating on the road. For most owners, the priority is retaining the car’s factory specifications to preserve its value and warranty.

Porsche’s engineering ensures these cars are finely balanced, so any modifications should be approached carefully to avoid affecting the car’s driving dynamics or long-term reliability.

Common Modifications for the 718 GT4 RS and Spyder RS

For those interested in making enhancements, the most common modifications generally focus on either aesthetic upgrades or suspension tweaks.

Suspension Upgrades

The GT4 RS and Spyder RS come equipped with high-performance suspension systems that are already optimised for both road and track use. However, some owners may opt for further upgrades to improve performance or adjust the ride height for a more aggressive stance. JXL Performance recommends the Bilstein Clubsport Performance Coilover Kit for Spyder RS/GT4 RS

Aesthetic Modifications

Given the 718’s aggressive and sharp design, many owners choose subtle aesthetic enhancements to give their car a more personalised appearance. Popular modifications in this area include:

• Front Splitters: A front splitter can help improve the car’s aerodynamics and reduce lift at higher speeds. It’s a relatively simple modification but can make a noticeable difference in both looks and performance.
• Side Skirts: Side skirts can enhance the car’s aerodynamic profile by managing airflow along the sides of the vehicle. This modification is often chosen for its aesthetic impact but can also aid in reducing drag.
• Rear Spoilers/Wings: While the 718 GT4 RS and Spyder RS already feature a functional rear spoiler, some owners opt for a more aggressive wing. This can further enhance the car’s aerodynamics and downforce, improving stability at high speeds, particularly on the track.
• Carbon Fibre Detailing: For a more premium look, some owners choose to replace certain body panels or interior components with lightweight carbon fibre. These changes can be purely aesthetic, or they can reduce weight for improved performance.

Check out the Maxton Design exterior options here (Cayman GT4 RS only)

Exhaust Systems

For those looking to enhance the sound of their 718, upgrading the exhaust system is a popular modification. Performance exhausts can provide a more aggressive exhaust note, and some systems may help improve engine performance slightly by reducing backpressure. However, it's important to ensure that any exhaust modifications comply with local noise regulations, as excessively loud exhausts can be an issue in some areas.

Considerations Before Modifying

Before deciding to modify your 718 GT4 RS or Boxster Spyder RS, it’s essential to keep a few things in mind:

• Warranty and Value: Porsche’s warranty is one of the main reasons owners choose to keep their cars stock. Some modifications, particularly those that affect engine performance or suspension geometry, may void portions of the warranty or impact the car’s resale value. Always consult with a Porsche dealer before making significant changes.
• Track Usage: If you plan to use your 718 for track days, modifications such as suspension upgrades or lightweight components may offer performance benefits. However, for most owners who use their 718 GT4 RS or Spyder RS primarily for road use, keeping the car stock is often the best choice to maintain its balance and reliability.
• Subtlety: Due to the high level of performance already present in these cars, any modifications should be subtle and purposeful. Over-modifying a Porsche can detract from the inherent qualities that make these vehicles so special.

Final Thoughts

The Porsche 718 GT4 RS and Boxster Spyder RS are extraordinary cars, and for most owners, they’re already highly capable without the need for modifications. However, if you’re keen to personalise your car or make subtle performance upgrades, there are a few areas where modifications can be considered. Focus on maintaining the balance and performance of the car, and always keep in mind that excessive modifications can potentially affect the vehicle’s value and warranty. For those who choose to make enhancements, keeping changes tasteful and in line with the car’s capabilities will ensure your 718 remains as exhilarating as it was designed to be.