- 0.8 mm acid-resistant steel
Fits the following engines:
- M50 2.5 without Vanos
- M50 2.5 with Vanos
- M52 2.0, 2.5 and 2.8 with one Vanos
- 0.8 mm acid-resistant steel
Fits the following engines:
- M50 2.5 without Vanos
- M50 2.5 with Vanos
- M52 2.0, 2.5 and 2.8 with one Vanos