Suspension Secrets Uprated Spring Package - Porsche 718 GT4 RS
All Prices Include VAT
As standard, the Porsche GT4 RS suffers with instability at the rear axle which is especially obvious when being pushed hard out on track. One of the main reasons for this is that the front and rear spring rates are not perfect matched for optimum chassis balance and damper efficiency.
The rear axle is over sprung and underdamped. This is mainly due to the GT4 RS being a car manufactured by Porsche with different components from already existing cars. Therefore, the rear dampers are actually not matched to the spring rate. This causes a hopping and skipping effect from the rear end through corners, which causes instability and oversteer and ultimately reduces driver confidence.
The front axle also contributes to the rear instability as the front springs on the standard GT4RS are actually too soft for the car. This allows the front to compress too much under heavy braking, making the rear axle go light and contributes to turn in oversteer.
To solve this, our engineers tested multiple different spring options on the GT4 RS and found the perfect balance with our selected spring rates using high quality Eibach Racing Springs for optimum longevity and performance. Our spring rates soften the rear axle slightly and stiffen the front axle slightly. This means that our rear springs match the OEM dampers, so they can be controlled through the corners, removing the skipping effect from the car. Our front springs are slightly stiffer than standard too, reducing the dive under heavy braking, keeping the rear wheels in contact with the ground and making turn in much more stable on corner entry.
As a package our spring kit not only improves the front to rear balance of the car, it increases grip and stability substantially and maximises contact patch through the corner, increasing grip levels and driver confidence substantially. As an added benefit, our spring package also allows you to lower the car 20mm lower than the standard minimum ride height to optimise the car for track use too. Standard ride height can also be maintained if you wish using the cars standard ride height adjustment.
The key benefits of the Suspension Secrets Uprated Spring Package for the Porsche 718 GT4 RS are:
- Improved rear axle stability with rear axle "skipping" reduced heavily
- Reduced dive under heavy braking and more stable turn in
- High quality Eibach Racing Springs for optimum performance and longevity
- Direct replacement of the OEM springs with no extra modification required
- Fully compatible with OEM dampers, PASM and nose lift
- Developed in house in the UK
We offer professional installation services directly in the Rennworks workshop, where your product will be expertly fitted and fully set up for optimal performance. To book an installation appointment, simply contact us and we’ll be happy to arrange a time that suits you.
Not sure if this product is the right fit for your vehicle? We’re here to help. Our team can quickly check compatibility and make sure you’re choosing the correct item before you buy. Just reach out with your vehicle details, and we’ll confirm everything for you.
Some product images are for illustrative purposes only and may show a generic or representative version of the item. Actual components may vary slightly depending on vehicle application or specification, but all products supplied will match the description and meet our quality standards.
Most orders are processed within 1–2 business days and usually ship within 3–7 business days. Not all items are held in stock, as some products are bespoke and made to order — for example, certain coilover suspension kits and exhaust systems — and delivery times may be longer in these cases. Where this applies, we’ll keep you fully informed and confirm expected dispatch dates as soon as possible. If you’d like to check availability or lead times, feel free to contact us before making a purchase.