I have ditched the Apexi AVC-R, cause I was not able to get constant boost and I realy hated to adjust the boost with the feackin duty cycle setting percentes. This kinda sux!

Th eGreddy Profec B is so easy to set. One thing I miss a bit is the gear dependend boost setting of the Apexi, but when I do DRAGing, I will press the select button on the Greddy from low to high boost after I switch into 3rd gear.

PS: I could experiment with both controllers, just hook them up in line

 

does the boost swing at all with the profec B? does the boost come fast too?

 

I don't know exactly, but it seems to be similar.

 

hence why I usually recommend the profec B.

 

Did you tap the charge pipe before the throttle body like in the directions when you hooked up the profec b? I have heard that you don't really have to do that. Has anyone tried hooking it up both ways? Which way gives more consistant response?

 

I have kooked it up at the compressor housing @ the turbo, like my AVC-R was. Pretty constant boost....go to Greddy.com and download the instruction...the charge pipe is mounted at the compressor side of the turbo there, while in the instruction of the Greddy Profec B box is before the throttle body.

 

don't wait till third to hit that button. hit it in second.

proud supporter of profec B.

 

funny scc rated the profec b better than the the profec a! glad i bought the b.