So my friend has a practly brand new VF39 Turbo he wants to sell me for $400.00

I was thinkign about buying it for my 04 WRX, But I have a few questions.

1) Is 400 a good price?

2) Right now all I have on my car is SPT Catback, SPT Intake and some suspension stuff. What else would I need to use this turbo?


Thanks,

Mike