All nice things.
As others have stated, HPFP internals first rear motor mount and downpipe before anything else. And a fine to to follow.
Damond motorsports makes the best motor mounts around.
Corksport (my personal preference) or Auto tech fuel pump internals.
There really isn't a bad way to go for downpipe. More personal preference than anything.
And then the tune: purple drank or freak tune are the big names who have been doing it the longest and have the most experience. Either of them would be a great choice.