ok I have an 89 NA supra and right now it's got a pre 89 spoiler mounted to it because its all I could find locally when I first got the car, but now I'm wondering how hard would it be to switch to the 3 piece I know the sides just need to be drilled but do the holes on the center piece match up or do I need to drill new holes and I'd new holes are needed an I out if luck because I have a pre 89 wing already drilled?