Well, the headers are installed. Pictured here are the headers from 'The Other Guys' for the Series II 3800 Engine. I've installed them and can't wait to give them a run (this spring), I'm hoping to see anywhere from 20-25 HP from them. The headers showed a 18 HP gain on a GTP in stock form (on the dyno), so my guestimate should be real close to actual. I got them from The South Florida Pulley Headquarters. I then sent the headers to Performance Coatings to be coated inside and out. I went with the Satin Aluminum (Silver color) 2000 degree coating. Below are some pictures of when they were received and after they were coated (prior to installation) Header Price: $759.00 Coating Price: $215