nope had a prob with atr and getting my turbo. just got it today. the 425 is just by what they told me i don't know for sure, the other cars have been dynoed. i got a 61 turbo, propt shaft, chip, 3" downpipe w/ billet wastegate, plugs, wires, 160 stat, and a couple little things. turbo 80hp over stock?? chip 40hp over stock(only thing i put in and maybe 15-20), downpipew/ wastegate opened to 18-20psi w/ race fuel 40hp..just guess and going by what atr said so i am hopeing. i was going to go to atco this weekend but i had someone looking at my hawk, and i did not have the turbo on yet. a friend of mine that does work on his lightning(my old 2k one) is going to throw everything on friday-sat. so i am hopeing for next week to be back at the track with my ty for the first pass and if i get my fuel pump fixed in my gn i will bring that too.