Go ahead and increase your Horse power today with this used

K&N Cold Air Intake Filter System Series 77

for 2002 Chevrolet Trailblazer

From the Manufacture:

BOLT-ON HORSEPOWER GUARANTEED!

Our systems are built for horsepower. In fact on the 2003 Ford Mustang SVT^® we get an impressive 30 horsepower. If we can’t increase a car or truck's horsepower we won’t build a system for it.  It’s that simple.  We establish a stock baseline horsepower with our in house dynamometers and then design our air intakes to get the largest horsepower gain attainable without causing a “Check Engine Light” to come on. Our horsepower numbers are not based on the single biggest gain from one particular vehicle but are an average of runs and vehicles.   Many times an identical vehicle will perform differently so we want to ensure repeatable numbers you can count on.  In today’s market place there are some pretty big cold air intake claims. We don’t make claims; we present the facts, backed up by well documented tests.

HIGH-FLOW TECHNOLOGY

How do we increase horsepower so consistently? It all starts with The World’s Best Air Filter. Even a K&N replacement air filter is limited by the size of the original air box but once we remove the air box we’ve got plenty of room to work with. Now we can apply our High-Flow Technology to a large conical open element air filter, providing more surface area for huge increases in airflow that turn into horsepower you can feel. The oversize air filter also captures and holds more dirt.  This increases the service life before a cleaning is required (up to 100,000 miles for air intakes depending on driving conditions).