Ya OBX while they seem to make ok gear they are not so much on the Human Interaction/Customer Service front. Never had any luck on contacting them to ask question in the past. Definitely going OBX here in the future when I get the duckets together for Long Tubes and a Wide Band.
sparktecmotorsports.com is who I did the group buy threw last time. You can email Danny and see if he can give you a hook up. Tell him you know me from Lightningrodder and maybe he will help you out (no promises) tell him Matt Carbine sent you over there