The funny thing about all of these considerations (e.g. actually adding exhaust restriction to make more power) is that the real problem is the inability to control the amount of valve overlap to avoid blowing the boost straight through the motor. VVEL is great for NA but killing us on FI applications. Just look how much more power the 350s are making on the same kits.
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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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