Air Check Valve - 911 | 1984-1998 99610622257 Impressive Dyno-Proven Gains: Delivers significant

Impressive Dyno-Proven Gains: Delivers significant power increases of 31 whp and 19 ft-lbs of torque with Sport Cats

8 mm thick ends

they are correct for the earlier 356 models

Precision Engineering: Ensures reliable and timely airbag deployment

Sonax MultiStar All Purpose Cleaner Concentrate 10L is a versatile cleaner designed for both exterior and interior surfaces

Air Check Valve - 911 | 1984-1998 99610622257 Impressive Dyno-Proven Gains: Delivers significantAir Check Valve For Porsche 911 (1984 1989) 964 (1989 1994) 993 (1995 1998) Models. The Air Check Valve for Porsche 911 controls airflow within the engines vacuum system, preventing backflow and ensuring proper operation of emission controls. Built for a precise fit, it helps maintain engine efficiency and supports clean emissions. An essential component for preserving your Porsches performance and environmental compliance.