i am running gen7 piggyback
it controls my fans, ignition, and fueling, idle, rev limiters etc. has wideband.

gen7 is $2150
wideband option is $970 (this is what turbotech sells for)
it also has a knock sesor option i didnt get
has built in 2 step, 3 stage nitrous functions, and a boost builder
ls1 ignition harness is external to the main box but plugs right in.
can be sequential or bank/bak, can control low or hi z injectors

all factory gauges work as well as a/c stuff, cruise control, abs all that., but when the tach is hooked up i have a ignition miss.. still working on that, but other cars are running fine with the stock tach hooked up.