Alpina B9 E28 Tuning – Classic powerhouse meets modern adapter technology

The Alpina B9 E28 is a car that has made automotive history. With around 240 hp from a revised inline six-cylinder engine, improved chassis, and understated styling, it was an absolute benchmark in the sporty sedan segment in the early 1980s. And to this day, the B9 continues to impress as a modern classic with its style, character, and a solid foundation for individual tuning.

However, as with many classic cars, retrofitting modern components such as high-performance brake systems, wider rims, or sportier suspension geometry is often impossible without temporary technical solutions. This is precisely where our tuning adapters from Epytec come in: custom-made, TÜV-approved, and perfectly matched to your B9.

The Alpina B9 E28 – an 80s icon with potential

The Alpina B9 was built between 1981 and 1985 based on the BMW E28 – as an answer to the desire for more power, individuality, and driving dynamics. With Alpina-specific controls, enhanced technology, and its signature look, the B9 set new standards.

Today, the B9 is a highly sought-after classic, but anyone wanting to further develop its technical capabilities – whether for everyday use, track days, or show & shine events – quickly encounters the limitations of the original design. Our Epytec tuning adapters create the necessary link between the original classic and modern performance components.

Wheel adapters – More choice when selecting rims

The wheels greatly influence the appearance of your B9 – and offer plenty of scope for customization. However, many of the modern, sporty designs don't fit the original bolt pattern (usually 5x120).

With our wheel adapters, you can easily mount rims with 5x112, 5x130, or other bolt patterns – and even adjust the track width accordingly. Whether for a wider look, improved wheel arch stance, or targeted driving dynamics – our adapters made of high-strength aluminum offer maximum safety, minimal tolerances, and TÜV-compliant design.

This way you can perfectly combine classic lines and modern technology – without having to compromise on rim design or dimensions.

Brake adapters – More braking power for more driving pleasure

With over 240 hp, the B9 E28 was ahead of its time – but modern performance figures and larger wheels demand contemporary braking. If you want to use brakes from the E34 M5, the E32 750i, or from motorsport, you'll need precise interim solutions.

Our brake adapters allow you to do exactly that. They create the perfect connection between your original steering knuckle and high-performance brake calipers – for shorter braking distances, more stable handling, and a more direct pedal feel.

Made from robust material, corrosion-resistant coated and TÜV-friendly designed, our adapters are just the thing for ambitious modifications to the B9 E28 – whether street or track.

Suspension adapters – Get the most out of your B9

Anyone wanting to get the most out of their B9 will need an optimized suspension. However, modern suspension components, strut mounts, or control arms often don't fit the original E28 structure without modification.

Our suspension adapters allow you to seamlessly integrate modern suspension solutions – for example, from the E34, E32, or from the racing sector. This allows you to precisely adjust camber and toe, optimize axle geometry, and noticeably improve your handling.

The result: More agility, more control, more security – without losing the character of your B9.

Why you're on the safe side with Epytec

At Epytec, we have specialized in the production of custom tuning adapters for over 15 years. For classic cars like the Alpina B9 E28, we not only develop standard solutions, but also custom-made adapters upon request that perfectly match your setup.

Your advantages with Epytec:

• Tuning adapters for brakes, rims and suspension
  
  
• TÜV-approved & 100% Made in Germany
  
  
• Perfect fit & highest quality workmanship
  
  
• Direct sales from the manufacturer – fast delivery & expert advice
  
  
• Custom designs for rare or special modifications are possible.
  
  

Whether you want to subtly improve your B9 or consistently optimize it for performance – with Epytec you get the basis for modifications of the highest standard.

More technology, more depth – our project page

On our project page you'll find lots of information, pictures and technical details about tuning solutions for the Alpina B9 E28. We show you which adapters fit which components, give you tips for installation and help you prepare for TÜV registration.

Get inspired – and plan your project with maximum security and flexibility.

FAQ about Epytec tuning adapters for the Alpina B9 E28

Question 1: Can your brake adapters be combined with M5 components from the E34?

Yes. Our brake adapters are precisely tailored to the conversion with M5 brake calipers and larger brake discs – for more braking performance with high stability.

Question 2: Can I also use wheel adapters from a Porsche or Audi RS?

Absolutely. With the right adapter, you can switch to, for example, 5x130 (Porsche) or 5x112 (Audi) – including centering and TÜV-compliant implementation.

Question 3: How does the adapter thickness affect the driving behavior?

The adapter thickness affects the track width. A wider track provides more stability and a sportier look – it's important to choose the right size for your suspension.

Question 4: Can you supply custom-made products for specific motorsport setups?

Yes. We offer customized adapter solutions for special components – for example, from motorsports or for unusual wheel/brake system combinations. Just ask us directly.