Yep just bought one, worth it just to see if I can get some sort of improvement before I shell out on something more expensive (GTRS) I like the fact is has graphing and 60sec recall....I'm a whore for features like that
I was using a Profec B-Spec II, I also used and HKS actuator, the stock actuator, an RB20 actuator and a combination of boost controller and all the actuators. I also ran with *NO* actuator and still got a ceiling of around 16psi and boost drop-off.
I honestly think there are too many people making mongrel-spec highflows with unknown performance. Exhaust housings are limiting in some and not others, a properly designed HKS, Apexi or similar is the way to go.
You'd be suprised though, quality fluctuates badly. I've had tools trying to get my GTt for 18K as they've seen one there cousin Meppy has bought for the same price and think they can get one too. Yeah well cousin Meppy just bought two halves welded together and the interior is rough.
I've now told 3 people to bugger off with offers only $500 under what I wanted, I'm not giving them a free bonanza! Look around and you'll find something decent for a good price. Definately under $20K my R34 is a GTt and is fairly mint with over $10K of mods....I'm chasing $23000 so you should be able to get a good priced car.
Yeah like that M3 up the sunny coast that was advertised for a stupidly cheap price....oh wait that wasn't a scam just an awesome deal that a certain SAU member picked up!!!1 Bastard!!!!
Yep clone situation of what happened to my car, the dyno never lies The boost controller won't fix it either, trust me I've been down this path and spent enough money on the folly. It always comes back to the same conclusion....GT-RS is the way to go.
On the dyno my CES dump actually brought boost on quicker and made more top-end than the bellmouth....they both tragically had boost drop-off, but hey that was related to a sucky-closed intake pipe :S
That's massively laggy, I'm making the same boost at 3800rpm....your drop-off definately isn't as excessive as Bikeys, hmm wonder what Bikey has come up with????