Its all steel with the exception of the front fascia.
Short list of mods: L92 with port work and cam, manual valve body 4l80, 9", coleman fabbed spindles, wilwoods, kinesis 18x13r 18x9f, runs mid 10's at 5000' elevation, lots of pdx, hpde, hod experience, autocrossed 6 classes over the last 10 years.
Its going to sema so I haven't had time to upload build pics, I will get to it after the show.