Review: Lexus IS-F K&N Typhoon Intake

I'm generally an easy person to please. It's very difficult for me to write a bad review for a product, but in this case I am. I was skeptical before I even opened the box. It promised 20+ hp gains. I would have believed this had Lexus placed a restrictive stock intake system in the vehicle, but they clearly did not. The intake system is marketed as a cold air intake system. I was puzzled. The goal of a cold air intake system is to breathe air NOT from the engine bay. A quick glance at the intake system shows a small heat plate sucking in air from relatively the same area. It seems the stock intake system is setup better, with a secondary intake system for 3000+ RPM that takes air nearly directly from outside the hood. I had it installed at a local shop. I was really excited to hear the sound on this system. The sound was immediately noticeable at lower RPMs. This intake system turned my plush, luxury car into a hot rod. The sound it makes at full throttle makes the car sound like an F1 race car. It sounds like the car is angry. The sound was great and gave me a false sense of speed, but over time, the electronic controller on the car started adapting to the new intake system and the sound was lost. Secondly, I was not noticing an increase in horsepower. I never dynoed the car, but I ran several 0-60 tests with the intake installed. These tests proved the ineffectiveness of the intake setup. Here's a test video of my vehicle on a closed course. I apologize for the poor footage, but I had to take advantage of the cool weather, to give the intake system the benefit of the doubt.