K&N Air Intake for Jeep Wrangler (2011)

How does the K&N  increase horsepower? By eliminating airflow obstruction in your engine. Restriction of air flow between an air filter and an engine robs even the most powerful engine of horsepower. K&N air intake kits virtually eliminate air path restriction by replacing the standard air filter and the entire air path to the engine. The aerodynamically engineered conduit that makes up the 63-1553 drives a massive amount of air into an engine, which translates into power.