Old head,
Go check out my mod page, i have a fix there for you that will help you hold boost. Also, you have to install the T fitting correctly. Our engine is smart. If it sees the wrong amount of boost, i twill retard ignition if the boost controller is not installed correctly. You will make more TQ, but less HP.
http://www.exhaustdepot.net/srandgtmoti.html
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E.D. 3\" Turbo Back, , HKS SSBOV, GReddy-e01 Boost controller, Greddy E-manage fuel management, Blitz Turbo Timer, JE pistons, Ported Head, E.D. Large Frontmount Intercooler, E.D. Tubular manifold with t3/t4 (prototype), IPP coilovers, Limited Slip.
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