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The K&N mandrel‑bent aluminum cold air intake for 2002–2005 Chevy TrailBlazer L6‑4.2L is engineered to increase airflow and deliver measurable gains in horsepower and torque. Each system includes a washable, reusable high‑flow oiled cotton filter with an oversized conical design that can extend service intervals up to 100,000 miles under normal highway driving. A heat shield protects inlet air and installation is typically straightforward.
K&N 02-05 Chevy Trailblazer L6-4.2L High Flow Performance Kit
