well my car has a few mods not sure of all of them but its how i bought it, sum i know of are headers cold air intake and pully?its a 2.0 L zetec but any ways when i bought my car it was fast and the guy at the dealership said he had it goin about 135, now its so slow its imbaressing ppl try to race me all the time and i cant keep up the acceleration is slow from it being stoped also it shuts off at like 106 or a lil more any one got any ideas why it shuts off now when it didnt b4 also why its slow off the line, thanks