F1 Sound Valvetronic Exhaust System, GT3 (996 / 997)
Valve-controlled bypass system tuned for a high-rpm note, rather than a conventional muffler swap.
Exhaust In production confidence: medium
Manufacturing
| Manufacturer | Kreissieg (クライスジーク) |
|---|---|
| Origin | 🇯🇵 Japan Manufactured here Kreissieg, Japan. |
| Process | Fabricated / Welded |
| Additively manufactured | No |
| Material | Stainless Steel 304L |
| Notes | The valve is the product — sound character is switched rather than fixed at build. |
Fitment
| 996 | GT3 |
|---|---|
| 997 | GT3, GT3 RS |
Sources
- クライスジーク ポルシェ F1サウンド バルブトロニック エキゾーストシステム — Kreissieg Japan, accessed 2026-08-17