I did have to use the originals and modify them. I cut the high beam out and replaced it with a projector housing and pushed up the back of the head light all the way up to the glass. The exhaust manifold fit just fine with no moddding. The turbo is litteraly a 1/4 of an inch from the hood. The tranny tunnel had to get cut and I had to make a new one and then get it rewelded. The Hood well..... You have to see the pics. I had to make a new shiffter support and linkage in order to sit it properly in the Z since the shifter sits 2" off center of the tranny tunnel.