KREISSIEG AUDI R8 CAT-BACK F1 SOUND VALVETRONIC EXHAUST SYSTEM
SOUND STAGE
The customer can choose different sound level when ordering an exhaust system.
The standard settings are Level 2 for silent mode, and Level 5 for F1 Mode
Level 1. Stock sound level.
Level 2. Sportier sound level.
Level 3. A high-pitched tone and loud F-1 sound of Sports muffler.
Level 4. A high-pitched tone and very loud F-1 sound of Sports muffler.
Level 5. A high-pitched tone and very loud real F-1 sound.