Z1 675s, Z1 GT600R or 2560s setup for Z32?

[Matt300ZXT]

The engine is stock, 550cc injectors with chip, Spec clutch, Stillen intake, Stillen x pipe and cat back. Boost is at 14ish psi right now and the car is just kinda boring to drive. There's no real throw you back in your seat feel to the car when you get on it, but then again, maybe I've just been driving the car too long. I don't drag race, street race, auto-x, anything. I rarely even take the car past 70-75. I just want to have fun now and then and really blast past someone that's pissing me off by going too slow, or whatever. It's mostly for bragging rights, but also for a little fun with the throttle now and then.

There are a couple guys on tt.net selling lightly used turbos, and those are the 3. I don't want to fool with Sport 500s or GT525s or anything like that. If I'm going to pull the motor and get turbos to hang with the big boys, then I'm going to go ball bearing and do it right the first time.

[EM.TT]

Get all the supporting mods for those turbos before you buy them. Stock turbos can definitely put you in your seat, if you have the correct set up, or at least a more developed one (no offense). Also, an EBC and cooling upgrades should be on the list as well. Besides, say you get one of the turbos mentioned, with your current set up larger turbos would give you some wicked lag.

BUT, If I were you I'd get the 2560's, considering how you would probably want more torque and mid-range power if you're not getting over 75 mph.