Valved Exhaust System, 911 GT3 / GT3 RS (992)
Valved system routing through an x-chamber muffler when shut and a large-diameter x-pipe when open, so the two states are genuinely different paths rather than one path with a flap in it.
Exhaust In production confidence: medium
Manufacturing
| Manufacturer | Soul Performance Products |
|---|---|
| Origin | 🇺🇸 United States Assembled here Soul states the systems are assembled in the USA. Tubing origin is not stated. |
| Process | Fabricated / Welded |
| Additively manufactured | No |
| Material | Stainless Steel 304L |
| Notes | Mandrel-bent 0.065 in wall T304L, with billet head flanges and merge collectors cut on a 5-axis machine. |
Published figures
| Basis | Published by the manufacturer; not independently verified. |
|---|---|
| Notes | Factory valve programming holds the valves shut to 4,000 rpm and opens them progressively through 5,000. |
Fitment
| 992 | GT3, GT3 RS |
|---|
Sources
- Porsche 992 GT3 / GT3 RS SOUL Valved Exhaust System — Soul Performance Products, accessed 2026-08-17