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Air Box Pop-Off Valve Kit, For Porsche® 911®, 1974-1983

Air Box Pop-Off Valve Kit, For Porsche® 911®, 1974-1983

1974-83 Air Box Pop-Off Valve Kit
Part #:
$22.29 Kit
  (No Discount / Limited Discount)
Order by 2pm E.T. ships today (M-F)
  Alt Part #:
In Stock
1974 thru 1983
See applications below for exact details.
Shipping Note:
This item can not be shipped by air.

Select a vehicle above or use application chart below to ensure this part fits your vehicle.
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  • Prevents Costly Air Box Explosions
  • Includes Pop-Off Valve
  • Installed With The Engine And Air Box In Place
  • Epoxy For Installations & Installation Instructions

Porsche 911® engines since 1973 have had the bad habit of backfiring and blowing a hole in the air box. 911® Pop Valve is installed inside the air box and when a backfire occurs the valve will instantly open and release the backfire pressure. The Pop Valve then automatically closes and the engine continues to run. The 911® Pop Valve conforms to all emission regulations and has no effect on performance or gas mileage. CIS Injection Only


Make / Model Series Body Notes Year
PORSCHE 911 All Models With CIS Injection 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983