If it does come with everything, the $1000 the auction went for is a bargain for new parts. Even with no engine managment, just get a StreetFlight chip and some bigger injectors for a grand more and you can't get 240whp cheaper.

2000 Rio Red I4 Cougar 200whp & 210wtq at 9psi 254whp & 276wtq with NX 35shot WRX TD04 Turbo, Cut Short Shifter, Strut Tower Bar, 17" ZN Wheels, Roush Springs, Starion Intercooler, NX 35 shot, HKS SS BOV, Full 3" exhaust,StreetFlight Chip