After reading your feedback on the Sport 530/2554, I came across this blog post from Nick at CZP that explains the common Garrett turbo options for Z32 (a bit dated in 2014) and even has a chart. https://conceptzperformance.com/blog/whats-in-a-name-garrett-turbo-nomenclature-more/ So far it seems the general consensus - and the chart agrees - is that the GT2554/G5/Sport 530 is the most streetable turbo with good power and good response. But I could also get higher HP with maybe a little more lag on the 2560 as long as I do all the breather mods. I think the 2860/Sport 700 is out given that I can not afford to buy both the turbos and the breather mods.
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