Originally Posted by raceram9
there is only one that guarantees performance gains or your money back .It the Vararam and IMO its the best on the market
K + N guarantees to 'make you horsepower or your money back" too.
Applicable only for intake kits purchased and installed in the U.S.A.
K&N Intake Kits are Guaranteed to Increase Power!
Every Intake Kit we design has been tested on a Dynamometer and proven to increase horsepower. We measure horsepower at the wheels. The horsepower rating that may have been on the window sticker when your car was new is often a measurement of horsepower at the engine and there can be a loss of horsepower through the drive train by the time it reaches the wheels.
K&N hereby warrants and guaranties to the original retail purchaser of any K&N air intake kit that the vehicle on which the air intake system is installed will gain an increase in horsepower, or K&N will refund the purchase price, including sales tax, to the retail purchaser, subject to the following terms and conditions:
The K&N air intake system must have been properly installed on the vehicle in accordance with the included K&N instructions.
The system must be the correct part number for the vehicle upon which it was installed.
The vehicle must be in good running condition.
The vehicle must undergo a dynamometer test both before and after the installation of the system, with no changes to the vehicle, except for the installation of the kit. The dyno tests must be performed by the same testing facility and must be performed within 30 days of one another and within 60 days of the date of purchase. The test results or work order for each test must reflect the name and address of the vehicle owner or operator having the test performed; the year, make, model and mileage of the vehicle being tested; and the horsepower results from both tests.
If the dyno tests show that the vehicle did not gain an increase in horsepower, then the retail purchaser must return the complete air intake system to K&N in its original packaging, together with his or her proof of purchase, the ORIGINALS of the two dyno tests statement requesting a refund in accordance with our Horsepower Guarantee. Upon receipt of all of the foregoing, K&N will refund the full purchase price, including sales tax, to the original retail purchaser.
This guaranty does not apply to any other costs incurred by the purchase, including, but not limited to, the dyno tests, parts and labor for the installation and removal of the air intake system, shipping costs, rental car, loss of use or incidental damages, if any, and K&N expressly disclaims any and all liability for same.
When the guys on the LX board noticed the 'gains' (or lack thereof) from the CAI kits, they questioned K + N, Volant, etc.
Only Volant seemed initially 'interested' in the results, but never did anything about it. To my understanding, K + N never would respond.
Get one that you like the looks of. =)