I think the steeda race wing will use the factory holes. Also the saleen S281 wing will work...I think...at least the one that came on the 2002's. Im not sure what other years of the saleen wing are the same as the 2002's...but it is a 3 piece design that has 2 smaller parts that go onto the rear quarter panels. The main part of the wing on the decklid looks like it uses the factory holes.