Singer Vehicle Design is ready to up its game.

That’s why the shop behind some of the some of the most stunning restored Porsche 911 you will ever see is teaming up with Red Bull Advanced Technologies. The racing team’s high-performance engineering arm is using its technological know-how to help reinforce the chassis on its open-top Classic Turbo builds.

Singer builds these reimagined 911s on the bones of a stripped-down 964-generation Cabriolet or Targa. As beloved as these versions of the iconic sports car may be, their steel monocoques, or chassis, have one major issue: their torsional stiffness isn’t up to modern standards. And that’s where Red Bull comes in.

Once the chassis has been “painstakingly” assessed, cleaned, and prepared, Red Bull Advance Technologies then digitally models the structure using scanned data and manual measurements. Finite Element Analysis software is then used to calculate the torsional stiffness of different variants with or without a roof, which allows the engineers to see what parts of the structure are working hardest to resist applied torsion and are in need or reinforcement.

The team’s work isn’t done just yet. It has also developed 13 carbon fiber structures specifically designed to reinforce trouble areas, without altering the 964 chassis or affecting packaging requirements too much. The structures are bonded onto to the monocoque during the rebuild phase of the restoration and help increase torsional rigidity by 175 percent. The upgrade improves the handling, braking, and “overall refinement” of the open-roofed vehicle, so that it matches the performance of one of Singer’s coupes.

“Since 2009, our approach has brought heritage together with cutting-edge engineering, and Red Bull’s mastery of advanced materials, simulation, and structural analysis perfectly exemplifies this approach,” Mazen Fawa, Singer’s chief strategy officer, said in a statement. “The results underline the extraordinary lengths we go to in our relentless pursuit of excellence.”

The service is reserved for Classic Turbo builds. It may sound like overkill to some, but there’s also no denying that the open-top version of the company’s seven-figure 930 Turbo tribute—which already makes up to 510 hp and comes with a six-speed manual transmission—just got even better.

Click here to see more photos of the Singer’s open-top Turbo Classics.