Porsche Gas Pressure Spring - 911 09-12 997-512-551-91 91155931901 however there are threads on

however there are threads on the Rennlist Porsche forums that will be of assistance (see links below)

Hose clamps are essential components that securely fasten hoses to pipes or fittings

Manufactured and individually tested to meet a much tighter tolerance band than original equipment published specifications

all materials used in production

Thorough Cleaning: Removes harmful deposits from various parts of your diesel engine's fuel system

Porsche Gas Pressure Spring - 911 09-12 997-512-551-91 91155931901 however there are threads onPorsche Gas Pressure Spring For Porsche 997 (2009 2012) Models. Maximize the performance of your car with Gas Pressure Spring 911 (09 12). This high quality spring provides maximum pressure for optimal engine performance, resulting in smoother acceleration and improved handling. Upgrade your car's performance with Gas Pressure Spring.