You can just run spring pressure for the time being if you really need to save money, or a less expensive MBC. However, I would go with an HKS unit personally. Makes no sense to drop 10K on a great TT system and skimp on a boost controller.
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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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