the front bumper (mtech or otherwise) is adjusted in two ways.
1. as you said the two runners on the front wings can be loosened and slide up or down, forward or backwards. sometimes it may be necessary to get a round file in there if the standard adjustment is not enough
2. the two struts that hold the center of the bumper on can also be adjusted up down left right. so by a combination of the four fixings the bumper can be adjusted to fit straight, and flush with the wheel arch.
note.... if you have it set too low from the two centre mountings you will have trouble gettitng the lower valance upper clips back on, its a two man job really.
mrlee
you can see the loocation of the fixings here (sorry covered in paper for the respray) but give you an idea of what i maen when i say centre mounts (two are visible, but under paper!) and side mounts, just infront of the wheel
