R8 V8 4.2 Audi (All Products) R8 V8 4.2 R8 V10 Show: 10 20 30 50 100 Image: Small Medium Large Sort by: Please select Recommended Price: Low to high Price: High to low Bestselling Display: 2 items [Audi R8 Exhaust Muffler] Cat-back F1 Sound Valvetronic Exhaust System [AUR8V8-01] $8,325.00 [Audi R8 Exhaust Muffler] Ksg Valvetronic Exhaust system repair kit. [Ksg-03] $245.00