SSI 38 mm Exhaust Headers with Heat Exchangers, 911 / 911 SC (1966–79)
38 mm primary headers that keep the heat exchangers — the performance option that does not cost you cabin heat.
Exhaust In production confidence: medium
Manufacturing
| Manufacturer | Dansk / SSI (JP Group) |
|---|---|
| Origin | 🇩🇰 Denmark Manufactured here JP Group Dansk, Denmark. |
| Process | Fabricated / Welded |
| Additively manufactured | No |
| Material | Stainless Steel 304L |
| Notes | 38 mm primaries suit the smaller-displacement early engines; larger bores are counterproductive below about 2.7 litres. |
Fitment
| 901 | All models (1966–1973) |
|---|---|
| g-series | 911 SC (1974–1979) |
Sources
- 38mm SSI Exhaust Headers With Heat Exchanger Set — Patrick Motorsports, accessed 2026-08-17