Ford Sierra GB4, GBG Tuning – Custom-made adapters for your project

Welcome to Epytec! Are you looking for customized solutions to optimize your Ford Sierra GB4 or GBG? Then you've come to the right place. For over 15 years, we've specialized in high-quality tuning adapters that give you maximum freedom when modifying your vehicle – whether you want to work on wheels, brakes, or the axle assembly. Our products are not only TÜV-approved and manufactured in Germany, but also precisely tailored to your needs.

The Ford Sierra GB4/GBG is a true piece of automotive history. With its distinctive design, rear-wheel drive, and sporty handling, it was not only a common sight on the roads of the 80s and 90s, but also very popular in motorsport. This makes it a particularly exciting basis for individual tuning projects. However, adapting it to modern components often presents challenges – and that's precisely where our tuning adapters come in.

Our tuning adapters allow you to install modern brake systems, widen the track, or mount rims with a different bolt pattern. Each adapter is individually manufactured, ensuring a perfect fit. We supply everything directly from the manufacturer – for maximum control and the highest quality.

Tuning for the Ford Sierra – Your classic reimagined

The Ford Sierra, in its GB4 and GBG variants, is a highly sought-after vehicle among tuning enthusiasts today. Produced between 1982 and 1993, it was the direct successor to the Ford Cortina and impressed with its aerodynamic design and sporty performance. Whether in its standard version or as the Sierra XR4i or RS Cosworth – this model has character.

However, converting such a vehicle to modern components presents its own set of challenges. Wheel bolt patterns differ, many modern brake systems are not compatible, and precision is required when adjusting the suspension. This is precisely where our tuning adapters provide the necessary flexibility and safety.

Do you want to fit rims from newer vehicles? Or are you planning a brake system that provides confident stopping power even during sporty driving? Our adapters make all of this possible – a perfect fit and TÜV-approved. This way, you get the most out of your Ford Sierra without compromising on quality or safety.

Rim tuning adapters – More choice, more style

Choosing the right rims is one of the most popular aspects of car tuning. However, things can get complicated with the Ford Sierra: many modern rim designs have a different bolt pattern, making direct mounting impossible. Our bolt pattern adapters solve this problem and open up a huge selection of rim designs.

Our adapters allow you to:

• Safely mounting rims with a different bolt pattern
  
  
• Adjusting the track width and improving handling
  
  
• A stable connection thanks to precisely manufactured aluminum adapters
  
  
• A hassle-free TÜV registration thanks to tested quality
  
  

This is how you combine the classic look of the Ford Sierra with modern style – without any compromises in driving safety or driving comfort.

Brake adapter – combining safety and performance

Especially with a sporty driving style or more powerful engine modifications, an improved braking system is essential. However, many high-performance systems from newer models cannot be easily integrated into the Ford Sierra. With our brake adapters, you can complete the conversion safely and precisely.

You can use it to:

• Install more powerful brake calipers and larger brake discs.
  
  
• Significantly improve braking power
  
  
• Stabilize braking behavior and reduce fading
  
  
• Benefit from a perfect fit for easy installation and TÜV compliance.
  
  

Whether for everyday driving or ambitious track days – with optimized braking performance you not only drive more safely, but also with a better feeling.

Wheel spacers and axle adjustment – wider, more stable, sportier

A wider track not only gives your Sierra a sportier look, but also noticeably improves handling. Our adapter plates and wheel spacers are precisely tailored to the Ford Sierra and offer you the opportunity to optimize driving dynamics.

The advantages:

• Wider track for better cornering and greater driving stability
  
  
• Perfect combination with larger rims
  
  
• Improved weight distribution and axle geometry
  
  
• High-quality materials for lasting durability
  
  

Especially when modifying brakes and suspension, precise axle alignment is crucial. Our adapter solutions bring everything to a harmonious level – for a perfectly balanced tuning concept.

Why Epytec? Because your renovation deserves no compromises.

With over 15 years of experience and a clear specialization in tuning adapters, we at Epytec are the first choice when it comes to the professional implementation of your tuning project. Our products are made in Germany, individually manufactured, and 100% TÜV-compliant.

What you can expect from us:

• Custom-made tuning adapters for the Ford Sierra GB4, GBG
  
  
• Highest quality through precise CNC manufacturing
  
  
• Direct sales from the manufacturer – no detours, no extra charges
  
  
• Independence in the selection of your components
  
  
• Technical support and personal consultation for your project
  
  

With our adapters, you can customize your vehicle exactly how you want it – uncompromisingly, safely and durably.

Find out more on our project page

If you'd like to learn more about tuning adapters, brake systems, or wheel spacers, then check out our project page. There you'll find not only technical details and installation instructions, but also inspiration for future modifications. Whether it's installation videos, guides, or user reviews – you'll find comprehensive knowledge about tuning here.

With Epytec, you can transform your Ford Sierra GB4 or GBG into a truly unique vehicle – technically sophisticated, visually striking, and perfectly suited for everyday use. Start your conversion project now with the best adapters on the market!

FAQ about Epytec tuning adapters for the Ford Sierra

Question 1: Which brake systems can I install on my Ford Sierra using your adapters?

Our adapters allow the installation of many brake systems from the Ford Group, such as those from the Ford Scorpio, Granada, or even sporty RS models. It's important that you tell us your conversion plans – we'll then manufacture an adapter that perfectly matches your requirements. This significantly improves braking performance, especially when using larger discs and 4-piston calipers.

Question 2: What do I need to consider when registering your adapters with the TÜV?

Our adapters are designed to meet the technical requirements for hassle-free registration. Most models come with a parts certificate or strength test report. In many cases, a simple visit to your trusted TÜV inspector is all it takes – we're also happy to provide you with information beforehand.

Question 3: How do I find the right adapter for my conversion?

On our website, you can search specifically for your vehicle model and planned modifications. If you're unsure, our support team will be happy to help. We simply need information about your vehicle, the desired parts (e.g., rims or brake calipers), and your modification goals. Based on this information, we'll create the perfect adapter solution for you.

Question 4: Can I also use your adapters at motorsport events?

Yes, many of our customers successfully use Epytec adapters in motorsports – whether at track days or classic car rallies. Our products withstand high stresses, are precision-manufactured, and thoroughly tested. Just let us know if you need a specific motorsports solution – we'd be happy to advise you.