I bought the first batch of Shaker Hoods off AMD. The Challenger Shaker Hood is very straight with no waves. With time this might of changed do to production quanities. They are not an exact copy of the Shaker Hood that Chrysler put on their cars. They fit nice and look cool. If this is an add on to your car they are great. No sanding of rust no problems with latches because they are all 1971s and you can put a 1971 latch release on a 1970 Challenger but the reverse if hard to do putting a 1970 Hood on a 1971 Challenger do to the latch location and operation.