I can tell you that i would take a hbc over an avc-r. Especially with any higher end setup. Im sure for just a local tune and other simple bolt on that the avc-r may do some justice. But when i switched to the hbc the boost is alot more consistant, never drops. And mine is also right in the cabin so adjustment is not a problem. But i have an avc-r for sale ha if you want it

Chris