Selling the stock throttle body off of my 98 contour svt. I did "optimize" it about a year ago. Works 100% although when putting it back together when optimizing it i wound the spring twice which was only meant to be done on the mustang throttle body. It in no way effects performance or function only affects the feel on your foot. After a week of driving this way you dont even notice it. takes a little more pressure to push the pedal in. Removed now because i have a 65mm mustang throttle body to go in with the 3l swap.