Posted by Scott on February 19, 1999 at 19:33:16:
In Reply to: How many horses does the K&N add to our E46? posted by Alex on February 19, 1999 at 17:35:44:
With my experience with modifying cars, the air filter will merely make it sound faster but not much else. If you are going to do more work to your car, port polish. headers, exhast, throttle body, then it will start helping. DO NOT listen to claims on ads or what salesman tell you. Don't even trust dyno runs unless you are there to see the before and after. If you want to be sure of the power, you can get a dyno run to really test if it does anything. A base line run cost about $40 and that will give you a good start on modifying the car. Hope this helps.