Porsche 718 GTS 4.0 Tuning Guide
Porsche 718 GTS 4.0 (Cayman/Boxster) Modification Guide
The Porsche 718 GTS 4.0 is already an incredibly capable sports car straight from the factory. With its naturally aspirated 4.0-litre flat-six engine, precise handling, and refined suspension system, the GTS 4.0 delivers an exhilarating driving experience that many owners are content to keep in its original form. However, for those who wish to personalise their car further or enhance its performance, there are several modification options available. This guide will cover some of the most popular modifications for the Porsche 718 Cayman GTS 4.0 and Boxster GTS 4.0, ranging from aesthetic upgrades to performance enhancements.
Check out our 718 GTS 4.0 dedicated parts offering here!
Performance Modifications
While the 718 GTS 4.0 is already a high-performance vehicle, some owners choose to make modifications that further enhance driving dynamics, sound, or braking performance.
Exhaust System Upgrade
One of the most popular modifications for the GTS 4.0 is upgrading the exhaust system. The stock exhaust sounds great, but many enthusiasts want to hear more of the naturally aspirated flat-six engine’s distinctive roar. Aftermarket exhaust systems, such as those from brands like Akrapovič or Cargraphic, can provide a deeper, more aggressive sound while also improving the car’s performance. These systems often reduce weight and provide more airflow, potentially improving throttle response and engine efficiency.
An exhaust upgrade can be particularly appealing for those who enjoy the auditory experience of driving, as the 4.0-litre engine’s growl is one of the most iconic features of the car. JXL Performance recommends Milltek Sport - shop here!
Braking Performance: Upgraded Pads and Discs
For those who plan to take their 718 GTS 4.0 on track days or want more braking performance for spirited driving, upgrading the brake pads and discs is a worthwhile modification. Porsche’s standard brakes are more than sufficient for everyday use, but high-performance pads and discs can offer better heat dissipation and improved braking performance under heavy use.
Carbon-ceramic brakes are another option if you’re looking for a more extreme upgrade, though they come with a significantly higher price tag. For most owners, though, a set of high-performance steel discs and pads from brands like Pagid or Brembo can provide a noticeable improvement in braking feel and performance. Check out our wide range of aftermarket/performance braking options for your GTS 4.0 here!
Suspension Tuning
While the standard active suspension management (PASM) on the GTS 4.0 is already excellent, some drivers may want to lower the car or make adjustments for even sharper handling. Performance lowering springs or adjustable coilovers can reduce the car’s ride height, improving its stance and lowering its centre of gravity, which can enhance cornering stability.
However, it's important to note that lowering the car or adjusting the suspension may affect ride comfort and can reduce the car's ability to handle rougher roads. For those who want better track performance without sacrificing comfort, a well-balanced coilover setup can be a good compromise. Check out our range of suspenion products for your GTS 4.0 here.
Uprated Air Filters
A relatively simple and affordable performance upgrade is replacing the factory air filters with high-performance alternatives. Upgraded air filters, such as those from K&N or BMC, can improve airflow to the engine, allowing for more efficient combustion and potentially slightly more power. While the gains are generally modest, the improved throttle response and sound can be a worthwhile addition for some owners. Check out the K&N Performance Replacement Air Filters here.
Aesthetic Modifications
While the GTS 4.0 already boasts a striking design, many owners opt for aesthetic modifications to further personalise their vehicle. These modifications allow you to make your Porsche stand out and reflect your personal style.
Wheels
Upgrading the wheels is one of the most effective ways to change the appearance of your 718 GTS 4.0. There are many lightweight, high-performance wheel options available, from brands like HRE, BBS, and OZ Racing. Opting for lightweight forged wheels not only improves the look of the car but can also reduce unsprung weight, which can improve handling and performance.
Some owners may also choose to go with a different finish for their wheels, such as matte black, silver, or gold, to give their car a more aggressive or unique look.
Decals and Vinyl Wraps
For a more subtle or completely unique look, some owners add custom decals or vinyl wraps to their 718 GTS 4.0. Whether it’s racing stripes, custom Porsche logos, or a full vinyl wrap, this modification allows owners to change the aesthetic without permanently altering the bodywork. Wraps also provide a degree of protection to the paintwork, which can be a bonus if you’re concerned about chips or scratches.
Carbon Fibre Detailing
Carbon fibre accents are a popular way to enhance the sporty look of the 718 GTS 4.0. Adding carbon fibre mirrors, spoilers, diffuser trims, or interior details can elevate the visual appeal of the car without drastically changing its overall design. These parts are lightweight and add an undeniable motorsport flair to the vehicle.
Conclusion
The Porsche 718 GTS 4.0 is a remarkable sports car straight from the factory, but for those who want to personalise their vehicle further or enhance specific aspects of its performance, there are plenty of modification options available. Whether you’re upgrading the exhaust for a more thrilling sound, improving braking performance, or customising the aesthetics with new wheels or interior touches, the possibilities are extensive.
When considering modifications, it’s important to choose upgrades that align with your driving needs and personal preferences. While the GTS 4.0 offers outstanding performance in stock form, these modifications can take your driving experience to the next level, making your Porsche truly your own.