Known as: plug with guide diode single line 930.612.091.00 / plug with guide / plug with guide single line / plug with guide simple / plug with guide single pole
Prevent costly air box explosions! Porsche 911 engines from 1973 on have had the bad habit of backfiring upon cold-starting. And blowing a hole in the air box. When this pop valve is installed in the air box and a backfire occurs, the valve will instantly open and release the backfire pressure. Afterwards, the pop valve then automatically closes and the engine continues to run. The air box pop valve conforms to all emission regulations and has no effect on performance or gas mileage.
This is the changeover valve that mounts to the intake distributor runners. Sold individually. 3 necessary per car.
This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.