For specific product details regarding rear shock absorbers for an Audi R8, it’s best to refer to authorized Audi parts suppliers, automotive parts websites, or directly to Audi dealerships. Here are some general considerations and information you might look for:

1. **Part Specifications**: Ensure the shock absorbers are compatible with your Audi R8 model year and variant (e.g., V8, V10, coupe, Spyder).

2. **OEM vs. Aftermarket**: Decide whether you prefer Original Equipment Manufacturer (OEM) parts or aftermarket options. OEM parts are designed specifically for your Audi model and often come with manufacturer warranties.

3. **Performance**: Consider if you want standard replacement shocks or performance upgrades. Performance shocks can enhance handling and ride quality but may come at a higher cost.

4. **Reviews and Ratings**: Check customer reviews and ratings to gauge the reliability, performance, and longevity of the shock absorbers you’re considering.

To find the exact product details, including part numbers, specifications, and availability, visiting Audi’s official parts website or contacting a local Audi dealership’s parts department would be beneficial. They can provide you with precise information tailored to your Audi R8’s model and year.