Porsche Auxiliary Spring - 911 07-11 997-333-537-82 99661311402 One set needed per door

One set needed per door

Porsche Perimeter angle kit for floor pan installation on all 356 models (1950-1965)

Type 901 transmission

synthetic resin based compound for permanently hot conditions

Please verify the correct IMS chain drive before ordering

Porsche Auxiliary Spring - 911 07-11 997-333-537-82 99661311402 One set needed per doorAuxiliary Spring For Porsche 997 (2007 2011) Models. Porsche The Auxiliary Spring for Porsche 911 (07 11) is a helper spring designed specifically for your car. This spring provides additional support to your vehicle, helping to improve handling and stability, especially when carrying heavy loads. With this spring, enjoy a more comfortable and secure driving experience.