Quote:
Originally Posted by WC-BRZ
Excuse my ignorance, but I'm a bit behind the curve unlike some of you experts on the forum here.
Would you care to elaborate a bit more for a noob? Let's say I'd be considering the PTuning kit w/ the Gen 2 GTX-2867R, would something like the Garrett G25 out perform the GTX-2867R in terms of faster spool?
I don't necessarily care for peak power, just want an efficient setup - something that comes on boost as quickly as possible and does not run out of breath around redline. As smooth and linear a powerband as possible, NOT a 600hp monster!
Also, would a G25 work with the standard kits available to us? I.e. Greddy, HKS, Ptuning, etc.? Or is there some sort of a custom flange required?
lol where do I learn about all these details! 
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That's precisely the opposite of the ptuning kit, which has, quite literally, the longest charge piping of any kit on the market. It has excellent heat management, but the worst transient response.
The G25 costs nearly double a GTX-28. To put it in perspective, the G25 costs more than an entire SBD turbo kit!
The G25 spools like a borg warner, but offers Garrett reliability. Win-win, except for the wallet, but I dont know a single G25 user who regrets it.
A G25 will work with most kits that use standard flanges, but will likely need minor alterations to possibly oil/coolant line routing, clocking, and possibly exhaust piping.
How much power are you realistically looking for?