2005 Dodge Magnum RT
Really wanted to like it. I actually gained 2 MPG with it which I really needed but the sound, it's a high pitch annoying sound that's constantly there. Even cruising on the freeway it's non stop. It makes it sound like something is wrong with your car. It seemed to give a little better throttle response which was nice, but I ended up having to take it off after 2 weeks because I couldn't stand the sound anymore. Install was very easy.