I don't know anything about Northwest Performance or Barracuda hoods for that matter. I can say that I purchased a Challenger shaker hood from AMD a few years ago and it is excellent. I removed my factory rally hood and bolted the AMD hood in with absolutely no fender adjustment. It is an exact fit. The rear of the trim ring contour didn't perfectly match that of the ridge on the center of the rear of the hood. Strange, because the front fits really nice. It could be corrected if someone wanted to spend a few hours on it, but not really a big deal in my opinion.