The X tires were put in my wife's 2001 Honda Civic and the difference was immediate. It felt like a new car. Road noise dropped DRAMATICALLY, handling improved GREATLY, cuts through water like nothing AND a very deep tread.
They're a little expensive though.
Total was $438.00 at BJ's with 'free' lifetime rotation and replacement (75K max on the tire)if they were to fail.
Overall, a fantastic tire. Highly recommended.