And just to add, the boost will come on faster with a boost controller. Running spring pressure, it will crack before you hit target boost. It makes boost onset a little less abrupt, but most people with turbos want to get on-boost as quickly as possible.
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Car Sold! Pleasure being a part of the Z community. 
New ride: 2015 GT-R - 647 WHP / 641 WTQ (e85) & 543 WHP / 519 WTQ (91)
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