Boost power and lift MPGs—the K&N FIPK Air Intake takes performance to the next level. The 57 Series cold air intake is custom-engineered with a famous K&N Filtercharger cone filter and crosslink nylon intake tract. Million Mile Limited Warranty.
K&N 77 Series Metal Intake Kits boost power and don’t skimp on style. These cold air intakes team famous K&N performance with a smooth metal intake pipe you can’t stop drooling over. Available in Polished or Gunmetal Grey. Million Mile Limited Warranty.
Replace stock parts with an Airaid Intake System. This easy-to-install cold air intake system delivers instant throttle and torque, plus boosts MPG for the conservative driver. Cold air intake comes with or without intake tube. Lifetime Warranty.
Got a good grip on your wheel? Good. Because the aFe Cold Air Intake is going to take you on a wild ride. This cold air intake rams performance-inducing air down your combustion chamber’s throat to take power to the max. Lifetime Warranty.
Let your custom ride breathe through a truly custom air intake with the Volant Universal FabShop Full Intake Kit. Designed to let you custom configure your own intake design, this custom intake kit includes ducting, a filter, brackets, hardware and connectors. 1-year warranty.
Top off your DIY CAI with the Airaid U-Build-It Cold Air Dam Performance Airbox. Including an air dam, top panel, mounting hardware, filter adaptor and a high-performance air filter, this custom cold air box is the perfect addition to your custom intake. Limited Lifetime Warranty.
Not sure which 2004 Chevy Trailblazer Cold Air Intakes are right for you? We have over 18563 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Installed in about 2 hours--drilling hole for air pump connection took some time. Drove to Dallas an hour later and averaged nearly 20 mpg, speeds between 75 and 85 mph. Already see the benefit of increased airflow. Next trip is to Arizona and will see what long distance savings are possible." —Dennis D from Waco, TX bought a K&N 77 Series Metal Intake Kit for a 2004 Chevy Trailblazer, 4.2L 6-cyl. engine.
"I installed this in my daughters car and instantly notice the better excelleration and hp." —Joseph K from Blaine, MN bought a K&N 77 Series Metal Intake Kit for a 2004 Chevy Trailblazer.
"was very easy to install and it increased the mileage on our 2004 trailblazer." —James I from Fallon, NV bought a K&N 77 Series Metal Intake Kit for a 2004 Chevy Trailblazer, 4.2L 6-cyl. engine.
"It was easy to install. The hardest part was removing the stock system. One of the best things about it that you will notice is when accelerating you hear it. Sounds great! More Power! Didn't notice the extra milage but I don't care its worth it (due to my foot going to the floor after every light)!" —Michael F from Long Branch, NJ bought a K&N 77 Series Metal Intake Kit for a 2004 Chevy Trailblazer, 4.2L 6-cyl. engine.
"Before I put the intake on, I had about 265 horsepower from the factory, after I put the intake on, I was rolling around 295 horsepower. The intake was well worth it, you'll notice it when you push it to the limit. So if you ain't got one go get it." —Shirley G from Hopewell, VA bought a K&N 77 Series Metal Intake Kit for a 2004 Chevy Trailblazer.
"This makes my car feel i have a turbo. It is high quality and is worth it. i was skeptical but i had to "learn" how to drive it right". I have not evenhad to push the pedal all the way" —Andrew R from Wheeling, WV bought an aFe Cold Air Intakes for a 2004 Chevy Trailblazer, 4.2L 6-cyl. engine.
"A god intake for the money, but lacked the full extension to delete the throttle body resonator on an 04 trailblazer" —Marcus C from Harvest, AL bought an aFe Cold Air Intakes for a 2004 Chevy Trailblazer, 4.2L 6 cyl. engine.
"This car is so underpowered and the Air intake made a huge difference, well worth the money. Not sure why it's called a fuel injection performance kit because it's not. it is just and air intake and filter." —Kenneth H from Wingdale, NY bought a K&N 57 Series FIPK Air Intake (Fuel Injection Performance Kit) for a 2004 Chevy Trailblazer, 4.2L 6-cyl. engine.