Just to update you guys I got the s4 & had the ECU flashed, added a Borla exhaust & a K&N air filter. Ive owned some fast cars before(96, 2000 Vettes, 02 XJR) but this is one(after the ECU was flashed) is just pure evil. Its almost like it has a different engine in it now. I also see the previous owner has put Neuspeed springs & rear sway bar on the car as well. This is my 1st Audi & I must say Im impressed. Im ususally not a 4 door sedan kind of guy but I really like this car & I cant get over what a difference the ECU flash made. It went from a quick car to pure evil now!!!