it seems once you do a cold air intake regardless of which one, she breaths better and allows for better high end cruising. I just brought home my new addition, and it is totally stock, and I missed my dual needswings sounds, and accelleration...but she ran plenty good in the this cold air we have right now. It's in the teens...set the cruise at 80....not problem at all...I really like this coupe, its a little more quiet than the vert...should be fun moding this one next...