I'm thrilled I got this hood for my Dart...

I put the Dual Snorkel Scoop on my Duster and used a Hole Saw (4") to cut the two holes. It came out great! Then you can buy the factory style gasket to cover the hole opening. When using the hole saw, you have to go slow and be careful holding the drill nice and straight. The metal is thin and a new saw cuts through quick.