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.
Power off the line with a Spectre Cold Air Intake. This cold air intake system boosts horsepower and torque for results you can feel. Fly by the competition or save on fuel with cold air intakes from Spectre. Chrome tubing. 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.
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.
Unleash your engine’s true power potential with a Volant Cold Air Intake. These cold air intakes increase airflow to take horsepower and throttle response to the max. Get yours with a performance or oil-free PowerCore® air filter. 1-year warranty.
Force-feed cool, power-boosting air directly into your gas or diesel engine with an AEM Brute Force Air Intake. This custom-engineered cold air intake is tuned to ramp-up horsepower and torque. Dryflow oil-free air filter for less mess. Lifetime Warranty.
Injen pumped a decade's worth of blood, sweat and gasoline into designing the Power-Flow—the world's first tuned cold air intake system. From its hi-flow air filter to its Mega Ram tuning, this intake is built for wild performance. Lifetime warranty.
Boost performance and save time & cash with the Volant Fast Fit 5 Intake System. Delivering all the gains without the pains, this cold air intake is budget-friendly, installs in under 20 minutes, and includes an air filter, intake tube, heat shield & hardware. 1-year 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 Jeep Wrangler 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:
"Great upgrade for the cash. Easy to install and really allows the engine to breathe more easily. Noticeable power gain in conjunction with an exhaust or the Edge Trail Jammer. The intake alone sounds great and improves performance on the highway. I got some better mpg too." —Christopher V from Fort Lee, NJ bought an AEM Brute Force Air Intakes for a 2004 Jeep Wrangler, 4.0L 6 cyl. engine.
"Easy to install (less than 40-minutes). Looks excellent under the hood. Noticeable power increase though not quantifiable by feel alone. However,it did not help fuel efficiency even when intentionally avoiding putting your foot on the gas. Decreased MPG by approximately 0.5 MPG. Overall, I'm please with the product, but was hoping to see MPG go the other direction slightly." —Robin D from Prattville, AL bought an AEM Brute Force Air Intakes for a 2004 Jeep Wrangler.
"she had a cj5 with 304 v8 and had to part ways, now has 04 wrangler 4.0, and said she felt like she was driving a sissy jeep. we gave her a little more power, better gas mileage, and a better sound. next is the gibson cat back exhaust." —Shawna O from Danville, IN bought a K&N 57 Series FIPK Air Intake (Fuel Injection Performance Kit) for a 2004 Jeep Wrangler, 4.0L 6-cyl. engine.
"My new K&N CAI makes the engine compartment look much cleaner. The install can be accomplished by anyone who can use basic hand tools. I would recommend this CAI and I will continue to order from Autoanything.com." —Wayne S from Virginia Beach, VA bought a K&N 57 Series FIPK Air Intake (Fuel Injection Performance Kit) for a 2004 Jeep Wrangler, 2.2L 4-cyl. engine .
"have called twice. can't get an answer how to return it. didn't fit. had air on jeep. none made for car. help would be nice......." —Buddy T from Charleston, WV bought an AEM Brute Force Air Intakes for a 2004 Jeep Wrangler, 2.4L 4 cyl. engine.
"One of the best horsepower/ft lbs torque gains for the $. Easy to install. Surprised my hubby by installing by myself for his bday. Oversized tires were killing the power until the K&N was installed. Haven't had long enough to see if increases gas mileage." —Sharon S from Morganton, NC bought a K&N 57 Series FIPK Air Intake (Fuel Injection Performance Kit) for a 2004 Jeep Wrangler, 4.0L 6-cyl. engine.
"Getting K&N FIPK was something I have wanted for a long time, So I tore open the box the same day I got it in the mail. Take your time and read the directions completely and make sure you look at the exploded view for all the parts and their locations.It prolly took me an hour to assemble. Did not like the weather striping have to guess on where to cut and fit it on the steal plate. After that it was simple bolt on.
I like the sound on the intake when I start it up in the morning. The dyno chart of the 12 hp is cool, once in a while I will bring my motor up to 4000 rpm to feel the difference. I would buy it again definitely." —Paul A from Southbridge, MA bought a K&N 57 Series FIPK Air Intake (Fuel Injection Performance Kit) for a 2004 Jeep Wrangler, 4.0L 6-cyl. engine.
"After Reading the reviews that others left I was a bit nervous. But after getting the Volant Intake I was very impressed and satisifed. Install was a snap, Perfect fit!! My torque and horsepower have increased exponentially, and I have seen an improvement in gas milage.It adds a great sound to the vehicle and when used with performance exhaust it is dynomite! This product is well worth the money.
" —Ryan B from Jacksonville, FL bought a Volant Cold Air Intakes for a 2004 Jeep Wrangler.
"This unit made a big difference in the engine breathing and acceleration. I am more than totally pleased. It looks great too.
My Jeep Wrangler Unlimited is only rated at 190hp. I am confident the Injen Cold Air added at least 10 hp.
Thanks for a great product." —Conrad C from Kernersville, NC bought an Injen Power-Flow Cold Air Intake System for a 2004 Jeep Wrangler, 4.0L 6 cyl. engine.
"The intake was easy to install. The only down fall is you realy dont see a diffrence untill about 3800rpm." —Alex N from Issaquah, WA bought a K&N 57 Series FIPK Air Intake (Fuel Injection Performance Kit) for a 2004 Jeep Wrangler.
"Easy install and improved gas mileage 3 miles per gallon on 04 Jeep Wrangler" —Chris D from Simi Valley, CA bought a K&N 57 Series FIPK Air Intake (Fuel Injection Performance Kit) for a 2004 Jeep Wrangler.