Buy K & N 57-3021-1 Fuel Injection Performance Kit Gen2 Air Intake KitK & N 57-3021-1 Fuel Injection Performance Kit Gen2 Air Intake Kit Product Description:
- More usable power and acceleration throughout the engine's RPM range; Estimated horse power gain claimed by manufacturer 9.11 hp @ 5,352 rpm.
- Easy to install, usually in 90 minutes or less and lasts up to 100,000 miles before service is required, depending on driving conditions
- Engineered to specific vehicle design and works with original manufacturer computer systems; See vehicle search above for compatibility
- CARB exempt and street legal in all 50 US States and comes with a million mile limited warranty..
- Over sized conical filters replace OEM filter and air box are and is washable and reusable
Product Description
The kit replaces your vehicle's restrictive factory air filter and air intake housing. K&N intake systems are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your vehicle's engine to inhale a larger volume of air than the OEM air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. The filters on these kits are washable, reusable and easy to install with tools commonly available.
Customer Reviews
Most helpful customer reviews
6 of 7 people found the following review helpful.
excellent product
By pt1655
My truck is a 2001 Chevy Silverado extended cab with 5.3l v8 and 4 wheel drive with 146,000 miles on it. The K&N 57-3021-1 Fuel Injection Performance Kit Gen2 Air Intake Kit was a quality product and took about 90 minutes to install. I had more trouble getting the old air filter housing, air box and air mass sensor off than I did putting the K&N on. I did have to shave a small amount of fan housing off to eliminate a too close fit but that was minor. The results were oustanding. Prior to installation, towing our 2011 Jayco Jay Feather Ultralite 197 at 4000 lbs loaded was laboreous and a bit leisurely, 55mph being the best I could hold and 2nd gear up most grades. After installation, the engine feels less labored and hard at work with lots more power and in conjunction with a Hypertech progammer, I can now hold 55mph easily and in overdrive, and it feels much better with more power and 3rd gear up grades. Our gas mileage, observed over several tanks over grades and mountain passes going to our favorite campgrounds, has gone from 10 mpg to 13 mpg. The K&N was well worth the price and I would recommend it to anyone.
1 of 1 people found the following review helpful.
Really liking my 'new' truck!!
By Shane Denver
The installation (and particularly the vague/unclear/undetailed instructions) were a little bit of a pain in the neck. But I was able to get it all done without any modifications to my truck. (2000 Silverado LT 5.3 4x4) Because of the instructions it probably took 3 hours, could have been about half that. (yes, I read everything at least twice.) I got about the same mgp, but like another review said I have been driving a little harder to hear that rumble. I know when I start driving like an adult again I will have better mpg. And my acceleration is night and day better. Now I just need to get an exhaust upgrade. Bottom line, once I got it in there I love it!
2 of 3 people found the following review helpful.K&N Cold Air Intake 57-3021-1
By Dynarider
Awesome product! Increased my mpg by 3-4 extra miles per gallon. Increased my horse power by 20%. Don't know how I got along without it. Quick delivery and absolutely no damage during shipping. Will definitely do business with them again.
Latest Price: See on Amazon.com!
More Info: See on Amazon.com!
See Customers Review: See on Amazon.com!
