Perrin is a fine product. Unsure of the quality of their downpipes, but their FMICs are of good quality. I wouldnt be too concerned about the headers, but it might be nice to know what your uppipe is.

So you are mapped via Cobb AccessPort? Did the device come with the car? If so, make sure you register it online with Cobb so you can continue to get updated maps. You never know when it was last updated and flashed.

Still, sounds like a good deal.