I'm using the Perrin Intake and Perrin Stage 1 flash. No complaints, looks and sounds nice and the car opened right up with the reflash.
The whole reason I went with an intake was because my stock airbox was rattling with the air dam that connects from the front. I thought it would be a good time to add an intake, even though there are no/minimal gains even with a tune.
I plan to continue with Perrin on my car, but COBB is just as good.