K&N 06-09 Chevy Trailblazer / GMC Envoy L6-4.2L AirCharger Performance Intake Cooling>Thermostats A custom shaped heat shield

A custom shaped heat shield with edge trim lining is included to keep engine bay heat from the air intake

They're a definite must for all racing and high performance street cars

Our Direct-Fit cats are constructed out of 100% MIG welded 409 stainless steel and are EPA Compliant

and can provide a safer

These performance polyurethane components help reduce common wheel roll-under

K&N 06-09 Chevy Trailblazer / GMC Envoy L6-4.2L AirCharger Performance Intake Cooling>Thermostats A custom shaped heat shieldA high density polyethylene (HDPE) rotationally molded tube helps increase the volume of airflow to your engine, and provides a guaranteed increase in horsepower and torque. These systems are paired with a washable, reusable High Flow Air Filter featuring oiled cotton filter media. The oversized, conical design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield helps protect