My RB30/26 with a T04z has just been fitted with the HKS EVC 6, replaced my Greddy Profec B. My car needed a boost controller with Throttle compensation as the car was making high boost at low revs. Its pushing out 740 bhp at the fly, so I can understand that its making mega boost. I'll be picking the car up from TR Racing sometime soon, so cant comment on it now, but (RIP) Rob said it was the way to go on big power engines.
Nearlt bought one a couple of days ago, but came to the conclusion that the money was needed elsewere.
Looks like a pretty basic boost controller. Should be on par with the greddy Profec-II or Blitz Spec-S controller.
Seems to do the same things. The HKS unit looks better though and also much smaller. Price look good too
Used to have the EVC-6 in my S15 and that was a real joy to setup (never tried the boost mapping bit though). This should be harder. Probably the same as the earlier mentioned Greddy and Blitz units. So expect it to take quite a while before you get it right. Think I spent over an hour setting upp my Previous Blitz Spec-R EBC. The EVC-6 only took a couple of minutes