Additively manufactured pistons for the 911 GT2 RS
Laser powder bed fusion pistons developed by Porsche with MAHLE and TRUMPF, roughly ten percent lighter than the forged series piston and carrying a closed cooling duct that conventional casting cannot produce.
- Published fitment
- 991.2 · GT2 RS
- Recorded availability
- OEM development / not sold. Confirm with the supplier.
- Recorded price
- No published price recorded
Confirmed on the manufacturer’s page. Sources last accessed ; fitment is not independently verified.
3D printedEngine InternalsOEM development / not soldConfirmed on the manufacturer’s page
Manufacturing
| Manufacturer | Porsche AG |
|---|---|
| Origin | 🇩🇪 Germany Vendor head office — place of manufacture not stated |
| Process | Laser Powder Bed Fusion (L-PBF, SLM, DMLS, LMF) |
| Additively manufactured | Yes |
| Material | Proprietary high-strength aluminum alloy |
| Notes | Around 1,200 powder layers built over approximately 12 hours per blank, from a high-purity aluminum alloy powder developed by MAHLE. Zeiss handled material and component quality validation. |
Published figures
| Weight saving | 10% |
|---|---|
| Basis | Published by the manufacturer; not independently verified. |
| Notes | Integrated cooling duct in the piston crown is reported to lower crown temperature by more than 20 °C. A set of six completed 200 hours of endurance testing. Porsche's Chinese and German newsrooms additionally claim the pistons allow up to 30 PS more from the 700 PS engine — a figure absent from the English release, so treat it as a localisation claim until confirmed. |
Fitment
| 991.2 | GT2 RS Demonstrator engine only. These pistons were never offered as a customer part. |
|---|
Sources
- Innovative pistons from a 3D printer for increased power and efficiency — Porsche Newsroom, accessed 2026-08-17
- MAHLE produces high-performance aluminum pistons using 3D printing for the first time — MAHLE Newsroom, accessed 2026-08-17