nice job, looks clean, and props on the fake cat shells, I personaly love the sound of an H, so I did something similar, but I removed the last cats and installed magnaflow high flow's in there place... Props to you...
If it is still off, I would recommend u clean it up and spray some ultra high temp paint on it, black or silver looks good, but make sure u get some "high" temp paint....
BTW did you TIG or MIG weld that, it looks good....