Grease a 9" pie dish with cooking spray. In a large bowl, mix graham cracker crumbs, butter, granulated sugar, and kosher salt. Press into bottom and up sides of a prepared dish.
In a medium bowl, mix caramel and pecans. Spread in an even layer on top of crust. Sprinkle with sea salt. Refrigerate until well chilled, at least 1 hour or up to 12.
Arrange banana slices on top of caramel, slightly overlapping, until caramel is covered.
In a medium bowl, whisk pudding mix and milk until thickened.
Using an electric mixer on medium-high speed, in a large bowl, beat cream until stiff peaks form. Fold 1 cup whipped cream into pudding mixture. Reserve remaining 1 cup whipped cream for decorating; refrigerate until ready to use.
Spread pudding mixture in an even layer on top of bananas. Cover with plastic wrap and refrigerate until well chilled, at least 3 hours or up to overnight.
Spread reserved whipped cream on top of pie. Drizzle with more caramel and top with pecans.
