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Air Filters

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911901522
Product Information
Product Information
Pop off air valve.

oematch

Fits:
Porsche 911 1973-89

Prevents costly airbox explosions, installed with the engine and air box in place. 911 engines since 1973 have had the bad habit of backfiring and blowing a hole an 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 angine continues to run. The POP VALVE has no effect on the performance or fuel mileage.

CIS Pop Off Valve Installation Click Here

For Fitting Instructions CLICK HERE

Please note the glue is not included with the air valve.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

911901522
911901522
91111090699

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About Air Filters

Porsche Air Filters: Original vs. Aftermarket Options

Improved Performance: Upgrading your Porsche's air filter can enhance its performance by allowing more air to flow into the engine, resulting in improved combustion and increased horsepower.

Enhanced Engine Protection: Both original and aftermarket air filters are designed to prevent dirt, debris, and contaminants from entering the engine. They efficiently filter out particles, ensuring clean air reaches the engine and reducing the risk of engine damage or premature wear.

Increased Fuel Efficiency: A high-quality air filter can contribute to better fuel efficiency by maintaining the optimal air-to-fuel ratio in the engine. It allows for proper combustion, maximizing fuel utilization and reducing fuel consumption.

Extended Engine Life: By keeping harmful particles away from the engine, a reliable air filter can help prolong the lifespan of your Porsche's engine. It minimizes the risk of abrasive particles causing damage to internal components and ensures smooth operation over time.

Easy Installation: Air filters are relatively simple to install, making it a convenient upgrade or replacement for your Porsche. They are designed to fit specific models and can be easily replaced during routine maintenance.

At Design911, we understand the importance of finding the correct part for your Porsche and offering professional advice. We provide a wide range of original and aftermarket air filters specifically designed for Porsche vehicles. Our knowledgeable team can help you identify the right air filter for your model and guide you through the selection process. With our expertise and extensive inventory, we strive to ensure that you receive the best-suited air filter for your Porsche, allowing you to optimize performance, protect your engine, and enjoy a superior driving experience.

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How to Choose the Perfect Air Filter for Your Porsche #porsche #porscheupgrade

Today we’re talking air filters: the unsung heroes of your car’s engine. Why does your Porsche need one? Where can you find it? And, crucially, how do you know when it’s time for a replacement? It’s all here. We’ll unpack the options: classic paper filters (basic but effective); cotton gauze and foam alternatives (reusable & sustainable); and the pièce de résistance – air induction kits. The latter promises cooler, denser air for your engine: more oxygen, better combustion, and potentially, sharper performance.
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