Instructions on the manufacturer's certificate for approved summer tires and wheels.
Porsche technical service bulletin No. 89-21 for 2020 Porsche 911 and 2011, 2018-2019 Porsche 911 Gt2 RS.
- Bulletin number
- No. 89-21
- Component
- Wheels
- Summary
- Instructions on the manufacturer's certificate for approved summer tires and wheels.
Vehicles covered
- Porsche 911 2020 2020
- Porsche 911 Gt2 RS 2011, 2018-2019 201120182019
VIN decoder
See the problems and recalls for an exact car
Buying a used Porsche 911?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history