Alright guys so I am going to get a 350z in the next few weeks and it's come down to these two cars. I'm not sure which one to choose because my goal is to turbocharge my car but I don't know if I should get the one that's already turbocharged or the stock engine one and just do it myself.

 

The 07 has the "Stronger" motor but there is less options out there for forced induction, if you decide to go that route.. If the 03 has a built motor go for that with out a doubt if the motor checks out good. But if it hasn't been built then try to see some logs to see how much boost he's actually pushing instead of taking his word.