| For some reason I got the wrong idea about what you were saying. Get the GT600r's, they are really nice turbos. Only downside is needing to get 5-bolt downpipes as well (which you would have wanted anyway). I just had my stockers machined to hold the same CHRA, so I have a 4 bolt flange, so it'll bolt up to the stock precats, with a little faster spool, and perhaps a little lower potential. Looking at your setup, a boost controller is an excellent idea, you'll be able to push a few extra pounds of boost (especially since you are at ~13psi), and have better response, etc. Definitely worth it. As to the upgraded turbos: with those injectors, you could bring the stock turbos to ~ 16-17psi (max of the turbos or so), but you would get much better response/power out of an upgraded set. Most will recommend the GT600R type turbos, because the ball-bearings will have a very fast spool time, they are fairly inexpensive compared to the 530s, and have great potential. Boost controller decision is a dangerous topic, gets to be more flame-like discussions than religion, or computer operating systems ;)
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