Best K & N 57-3509 Fuel Injection Performance Kit Gen2 Air Intake Kit

K & N 57-3509 Fuel Injection Performance Kit Gen2 Air Intake KitBuy K & N 57-3509 Fuel Injection Performance Kit Gen2 Air Intake Kit

K & N 57-3509 Fuel Injection Performance Kit Gen2 Air Intake Kit Product Description:



  • Estimated HorsePower Gain Claimed by Manufacturer 6.11 HP @ 6300 RPM
  • More usable power and acceleration throughout the engine's RPM range
  • Easy to install using tools commonly available
  • Most are street legal in all 50 states
  • Filters are washable and reusable, and are backed by a million mile limited warranty

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

2 of 2 people found the following review helpful.
5Fantastic!!
By jose sanchez
I have a 1998 Integra LS. This intake is meant for a GSR. I bought some vacuum connectors at Autozone for around $5 and stuck one end into the vent hardline and the other end into the intake's grommet. I'm still venturing to find a better solution but for now this has been working just fine. The intake itself is really good. Isn't loud at all but it will give you a beefy muscular growl when you step on it. I have noticed an increase in MPGs which is great. It is also CARB legal which is the primary reason I was looking into buying a new intake. The stock one broke so the previous owner shoved a cheap $40 Pepboys intake which would have failed the smog check.Overall, great intake, the price tag is pretty good here on Amazon. Love it.

1 of 1 people found the following review helpful.
5Great MPG increase
By AJ
This ended up being a very good investment on my Acura Integra LS DC2 (B18B). Before with my stock air box, I was hardly getting 300 miles on a full tank of gas. After installing my new K&N Intake, I've noticed an increase in my MPG. I've now driven 300 miles and i still have about 1/4-3/8 left on my fuel gauge. The only problem I had was inserting the crankcase vent hard line into the new intake tube; so I had to somehow extend the tubing from the valve cover so that the hard line would reach the intake rubber grommet. Even though the Vehicle Fitment on Amazon says that the intake fits, I think the fact that my engine is a non-VTEC, the distance from the Valve Cover to the throttle body is farther that's why the hard line was farther. So if any future buyers of this intake have a B18B engine, make sure you have a plan for the hard line.Overall this is a great product, and sounds great in acceleration!

0 of 0 people found the following review helpful.
5FIPK 57-3509
By EyesBlooded
By far the best price online, at least $50 cheaper than any competitor I could find. You get exactly what you expect after purchasing. It's an easy enough install, but if you don't know how to get around the cranckshift bypass or whatever it's called shops will usually install it for around $60 bucks which is less than the average $100/hour standard labor fee now for mechanics. Anyways, back on the product, I got it installed on my 2000 Integra SE (GS with trim package only offered in OT) looks really niced, fit perfectly too. When accelerating you can really notice a deeper throttle sound coming from your engine. My stock intake was damaged and in really bad shape, so I really noticed improvements with how the car performed immediatly after swapping them. If you want your car to sound nice, need to replace your current intake, or just want to slowly beef it up, I'd strongly reccoment this product. On top of everything it's also the only compelete intake setup that comes with a heat shield! Great for summer and winter unlike short ram intakes.

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