What to Look For

• Bore scoring on 3.8L DFI engines (997.2 and 991.1)
• Coolant pipe failures on 997 Turbo
• PDK mechatronic unit failures on early PDK cars
• PASM shock absorber leaks
• Bore scoring on 3.8L engines remains a concern
• Turbo models (991.2) are more reliable long-term

Pre-Purchase Checklist

• Bore scope all cylinders (especially 3.8L engines)
• Check PDK adaptation values if equipped
• Inspect PASM shocks for leaks
• Verify Sport Chrono, PCCB condition if equipped
• Full compression and leak-down test

Useful Resources

• https://www.pca.org/
• https://rennlist.com/forums/
• https://www.pelicanparts.com/techarticles/
• https://www.planet-9.com/

Frequently Asked Questions

Is the Porsche 991 a good investment?

The Porsche 991 scores 64/100 on average, making it a moderate investment prospect. Look for well-maintained, low-mileage examples to maximize returns.

What is a fair price for a Porsche 991?

The median asking price is €99,900, with listings ranging from €35,127 to €2,195,992. Final transaction prices may differ depending on condition, mileage, and provenance.

How many Porsche 991 are for sale?

PistonAlpha currently tracks 1834 active Porsche 991 listings from dealers and auctions across Europe, updated daily.

What should I look for when buying a Porsche 991?

Key areas to inspect: Bore scoring on 3.8L DFI engines (997.2 and 991.1); Coolant pipe failures on 997 Turbo; PDK mechatronic unit failures on early PDK cars; PASM shock absorber leaks. A pre-purchase inspection by a marque specialist is highly recommended.