Porsche 911 Carrera 4 Cabriolet 991 Tuning – Epytec Adapter for maximum precision & freedom

The Porsche 911 Carrera 4 Cabriolet (Type 991) embodies sporty elegance, technical perfection, and the unmistakable 911 feeling. With its all-wheel drive, folding soft top, and ideal balance between comfort and dynamics, it's not only an exhilarating driving experience but also a highly sought-after vehicle for customization. But those who want to stand out from the crowd need more than standard components – they need flexibility, precision, and uncompromising quality. And that's precisely where we come in.

As a world-leading manufacturer of tuning adapters, we at Epytec have over 15 years of experience developing customized solutions for demanding vehicle modifications. Our adapters for rims, brakes, and suspension components are manufactured specifically for your Porsche 911 Carrera 4 Cabriolet – TÜV-compliant, a perfect fit, and 100% Made in Germany. So you don't have to adapt to your vehicle's technology, but rather your vehicle adapts to your vision.

Whether it's larger rims with a different bolt pattern, a motorsport brake system or chassis components from higher model series – with our tuning adapters your conversion project will be a complete success.

The Porsche 911 Cabriolet Carrera 4 991 – A powerful all-rounder with potential

The 911 Carrera 4 Cabriolet of the 991 generation was produced between 2012 and 2019. It combines a 3.4- or 3.0-liter boxer engine with all-wheel drive and the typical driving feel of an open-air two-seater. Thanks to an electronically controlled center differential and wider body, it offers not only more traction but also space for creative modifications.

However, as with many modern sports cars, the possibilities for individual modifications in the standard configuration are limited. Many wheel designs don't fit without special bolt pattern adapters, brake systems from more powerful models cannot be installed without modifications, and there is often no room for individual adjustments to the suspension geometry.

Our tuning adapters offer a solution. They allow you to install virtually any desired component on your 911 Cabriolet – safely, securely, and in compliance with TÜV regulations. This makes your vehicle not only a visual highlight but also a true technical marvel.

Wheel adapters – Maximum freedom in rim choice

For many 911 owners, the tuning project begins with new rims – but the bolt pattern often throws a wrench in the works. Those who opt for rims from other Porsche models or aftermarket designs quickly encounter the problem of incompatibility.

Our wheel adapters are the solution. They allow you to mount rims with a different bolt pattern securely and precisely on your Porsche 991 Carrera 4 Cabriolet. At the same time, you can increase the track width of your vehicle, which improves both the appearance and the handling.

Each adapter is made of high-strength aluminum, offering precise centering and a secure connection between axle and rim. Thanks to our TÜV-compliant design, you can not only drive safely with your chosen rims, but also easily register them.

Brake adapters – More deceleration, more control

With sporty driving, larger wheels, or track use, it quickly becomes clear: the standard brakes on the 911 are good – but there's room for improvement. Our brake adapters allow you to install more powerful braking systems, such as those used in the 911 Turbo or the GT3.

Our adapters allow for the precise mounting of larger brake calipers and discs without the need for complicated modifications. The advantages are obvious: improved braking performance, reduced risk of brake fade, and increased confidence – even at high speeds.

The adapters are made of robust steel or high-strength aluminum, depending on the requirements, and are designed for the highest stresses in everyday use as well as in sporting applications. The result: a more powerful and reliable braking system – perfectly matched to your vehicle.

Suspension adapters – Perfect control, no matter the track

If you want your convertible to feel even more direct, sporty, and agile, there's no way around a custom-tuned suspension. However, many components from the Porsche parts bin aren't directly compatible with your 991. That's where our suspension adapters come in.

They allow you to install chassis modules from other models – such as Clubsport components, reinforced wishbones or coilover suspensions – and ensure precise adjustment of camber, toe and vehicle height.

With the right adapters, you'll not only achieve a sportier look, but also improved vehicle balance, cornering stability, and steering feedback. Whether on country roads, highways, or track days – your 911 will feel noticeably more dynamic and, at the same time, more controlled.

Why Epytec is the first choice for your Porsche

With Epytec, you're choosing precision, quality, and true tuning freedom. Our tuning adapters aren't mass-produced – they're custom-made for your specific vehicle. This ensures a perfect fit that universal solutions simply can't match. And: All our products are developed, manufactured, and tested in Germany.

Your advantages with Epytec:

• Custom-made adapters for your vehicle
  
  
• Production in Germany – Quality & Safety
  
  
• TÜV-compliant designs for easy registration
  
  
• Over 15 years of experience in the tuning industry
  
  
• Direct sales from the manufacturer – fast delivery & personal advice
  
  

More technology. More information. More tuning. On our project page.

Want to delve deeper into the technical details or see how others have implemented their projects? On our project page, you'll find instructions, background reports, tips, and tricks about tuning adapters, brake systems, and suspension solutions. Perfect for anyone who wants to get the most out of their Porsche.

FAQ about Epytec tuning adapters for the Porsche 911 Carrera 4 Cabriolet 991

Question 1: Can the adapters also be used with winter tires or original rims?

Yes, our adapters are suitable for both summer and winter tires, provided the technical dimensions match. Original rims can also be used in many cases, for example, if you want to widen the track or change the bolt pattern. Correct registration and centering are essential.

Question 2: Does the driving behavior change noticeably due to wider track?

Yes, a wider track generally leads to more stable handling, especially in curves. Your 911 will feel more planted on the road, more direct when turning, and more secure during quick changes of direction. The car also benefits visually from the wider stance.

Question 3: How do I know if my desired brake is compatible with the adapter?

Once you provide us with the brake's technical specifications (caliper type, disc diameter, mounting dimensions), we'll check if a suitable adapter is available or can be custom-made. We're happy to advise you before your project and work with you to find the optimal solution.

Question 4: Are all adapters permanently corrosion-protected?

Yes, all Epytec tuning adapters are made of high-quality materials such as aluminum or galvanized steel. They are either anodized or coated, providing lasting protection against moisture, dirt, and road salt. This ensures you're on the safe side even in winter and with intensive use.