Review on 🚗 K&N Cold Air Intake Kit for 2000-2007 SUBARU (Impreza WRX, Impreza WRX STi, Impreza II WRX, Impreza II WRX STI) - High Performance, Guaranteed Horsepower Increase - 69-8001TS by Brad Jeffress

It was easy to install. I hate working on my car because I'm afraid of screwing something up. I installed it in a relatively short time. I had no problems and everything went as it should. Sounds cool. If you want to hear your turbo, this will do the job. I have a STi 06 car. I hear the whistling and flapping of the turbine, and I hear the stock compressor bypass when I let go of the engine. I don't feel any difference in horsepower, but highway driving has never been so fun.