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High Performance Porsche 9mm Valve Springs and Ti-retainer kit 911/930/964 engines

High Performance Porsche 9mm Valve Springs and Ti-retainer kit 911/930/964 engines

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9mm Kit includes Aasco HP109 High Performance Valve springs, HP10T9 Titanium spring retainers and HPSS Spring Seats. These Valve Springs are designed and manufactured to specifically fit the envelope of a Porsche application not a spring from another use.