Eurocode Alu Kreuz Billet Aluminum Drivetrain Stabilizer B8 · 8R

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EurocodeSKU: EC0101-0101 DIY Difficulty: EASY

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Product Questions & Answers

Product Questions & Answers

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The Alu Kreuz is a solid one-piece lightweight aluminum structural member that replaces the stock unit.  During our testing of the B8 and B8.5 chassis cars (Audi A4, S4, A5, S5, Q5 and RS5), we found that there was quite a bit of torsional flex coming from the factory subframe/engine carrier.  This torsional flex produced what we felt to be incorrect steering sensitivity and response in all aspects of driving.  To combat this unwanted characteristic, we did a thorough examination of the front suspension, chassis unibody, and the engine carrier/subframe.  Our conclusion was that the OEM hollow steel drivetrain stabilizer underperformed.

When creating this product, our first step was to analyze the material that the factory stabilizer was made up of and then create a load case scenario in which to test it under.  We sent out a sample for materials testing and found the factory stabilizer to be made up of carbon steel with a density of 0.284 lb/in3, predominately hollow and stamped into shape.  The OEM stabilizer is made up of nine separate pieces, and they are all welded together to form one single unit.  Once all of this data was collected and loaded, our team set out with the goal of improving chassis rigidity and weight reduction.  Our team found that a replacement stabilizer manufactured out of billet aluminum would accomplish our goals, so the next step was the design process.

Our design process went through several revisions, with each version being loaded into computer modeling to test how it would stack up against the inferior OEM product; these revisions were also built and tested not only on the road, but as well as on a closed course with the feedback provided by a professional driver to the design engineers.  The Alu Kreuz is also nearly two pounds lighter than the OEM brace and greatly improves chassis torsional rigidity.  It looks amazing as well.

Independent analysis was performed on the product and the conclusions were that in each of the pre set load case scenarios, the Alu Kreuz deflected less than the OEM stabilizer, carries less stress for a given applied load and the fatigue life of the product is greater than OEM.


  • Better steering response- both at the limit and in normal day-to-day driving
  • Improved steering accuracy- more “point and shoot” versus a vague steering fee
  • Less “play” or sloppiness- better composure on uneven pavement with less shimmying
  • Less torsional flex from the chassis (some even report less creaking in the interior)
  • Vastly improved driving dynamics along with increased refinement

What's Included:

  • Eurocode Alu Kreuz Billet Aluminum Drivetrain Stabilizer

Vehicle Fitment

Model   + Drivetrain  
8R Q5 2.0T I4 +
8R Q5 3.0L SC V6
8R SQ5 3.0L SC V6
B8 A4 2.0T I4 +
B8 A4 3.2L V6 +
B8 A5 2.0T I4 +
B8 A5 3.2L V6 +
B8 RS5 4.2L V8
B8 S4 3.0L SC V6
B8 S5 3.0L SC V6
B8 S5 4.2L V8

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