Buy K & N 57-1002 Fuel Injection Performance Kit Gen2K & N 57-1002 Fuel Injection Performance Kit Gen2 Product Description:
- Estimated HorsePower Gain Claimed by Manufacturer 11.46 HP @ 6030 RPM
- Million-mile limited warranty
- Easy to install, usually in 90 minutes or less
- Lasts up to 100,000 miles before service is required (depending on driving conditions)
Product Description
The Generation II FIPK is K&N's ultimate performance product, designed to increase power by as much as 10%. Most FIPKs are street legal in all 50 U.S. states and come with a million-mile limited warranty.
Customer Reviews
Most helpful customer reviews
6 of 6 people found the following review helpful.
Beware of Whistle Noise
By Tech Guy
I bought this mainly on impulse because of the price at Amazon. The item arrived with all parts intact. Step by step instructions were clear and accurate with photographs. Installation should be straight forward for most.There is a slight noticeable improvement in torque and acceleration above the 3000 rpm range, although it could be just my imagination due to the better sounding growl. I do not hear a difference in sound below 3000 rpm. I do experience a high pitch whistle that can be heard over my radio. The whistle is not constant and occurs only during slight throttle mostly in the 2000-2500 rpm range. Others on the internet also have reported this whistle noise from a conical filter from K&N and other manufacturers on BMWs and other makes. The noise can be irritating given its high frequency. Unlike the whining sound of a supercharger, which screams more of performance, the whistle noise sounds more like there's a tea kettle under your hood. Others have chosen to live with this whistle, a few actually enjoyed it and others have chosen to go back to stock. Youll have to determine for yourself if it's worth putting up with the whistle for a few extra ponies.Upon further investigation, the whistle is not caused by the filter itself, but by the air going through the throttle plate at around 2300 rpm. This can be confirmed by removing the cone filter. The whistle is still present and can be localized to the throttle body section. Apparently, this is an issue with the E46 regardless of maker of the CAI.
2 of 2 people found the following review helpful.
Nice Performance Addition to my 2004 BMW 325i
By M. S. Arledge
I've used K&N products in the past so I was assured of quality. Assembly instructions were excellent as well as online research on K&N's web site. After installation I can notice a slight amount of power increase and trottle response is quicker - just what I hoped! Also Amazon had the lowest price when you figure no tax or shipping fees.
1 of 1 people found the following review helpful.K&N 57-1002 Kit for BMW e-46
By Albert
This is a nice and fine upgrade for a 6-cilinder BMW (mine is a 2.5l). Quite easy to install because of the clear instructions. It gives a mighty great 6-cilinder sound when you put the throttle down and remains calm and relaxed when driving at constant speed. Even the fuel consumption is going a bit down (caused by the cold-air intake?). What more could one want? I can seriously recommend this filter-kit to anyone wanting a sporty upgrade to considerably low costs when you by it from Amazon.Albert from Holland
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