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Home > Air Filters & Intakes
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Cold Air Intake Replacement Filters Jeep Cherokee XJ 84-01
Jeep Grand Cherokee WJ 99-04 Jeep Grand Cherokee ZJ 93-98
Jeep Wrangler JK 07-Present Jeep Wrangler TJ / LJ 97-06
Jeep Wrangler YJ 87-95 Toyota Intakes and Filters
Jeep Liberty KJ 02-06
What exactly are Air Filters & Intakes?  What is the purpose?

An intake is an air intake for an engine. Because the modern internal combustion engine is in essence a powerful air pump, like the exhaust system on an engine, the intake must be carefully engineered and tuned to provide the greatest efficiency and power. An ideal intake system should increase the velocity of the air until it travels into the combustion chamber, while minimizing turbulence and restriction of flow. A cold air intake is an aftermarket assembly of parts used to bring relatively cool air into a car's internal-combustion engine. Most vehicles manufactured since the mid-1970s have thermostatic air intake systems that regulate the temperature of the air entering the engine's intake tract, providing warm air when the engine is cold and cold air when the engine is warm to maximize performance, efficiency, and fuel economy. Aftermarket air filters & intakes are marketed with claims of increased engine efficiency and performance. The putative principle behind a cold air intake is that cooler air has a higher density, thus containing more oxygen per volume unit than warmer air.




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