Just installed my IPE X pipe with 200 cell cats. Sounds great paired with my PSE.

Did take off the bumper. Made the install much easier.

 

Impressions. Absolutely no drone at cruising speeds. Still has the signature Porsche sound. More exotic sounding during acceleration. As for those who stated their car actually got quieter, not mine. I also read multiple stories of people needed to trim inches off of their fab speed x pipe, this IPE x pipe was an exact fit. And you can see the finish is beautiful. I don't feel any power loss. If anything this car feels lighter and pulls harder. Next up may be the IPE headers.