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Hi, id like to compare and contrast the oem factory boost solenoid versus an aftermarket electronic boost controller; for rb26 mostly but also rb20/25. My main curiosity is how it regulates boost. An ebc has the ability to control not only a specific psi but also when the gate begins to open, whether early to give a smooth curve or late, for more aggressive curve with a possibility of a spike. I noticed the factory unit has a plug too, does anyone know what its for? Also, how efficient is it at controlling boost pressure ie: adding an exhaust, owners see an increase in boost pressure. Is it worthwhile to swap for an EBC if stockish boost levels are desired or will there be a benefit to lag and transient response? Regards