Its a Stryder plenum, unfortunately they dont make them anymore... paid 600...
it would have been easy to bolt on it the std runners were flat, it wasnt until it was all in that i realised that it was warped and air was going in from outside, had to get it machined flat, and it was all sweet... both AAC and IAC valves are working fine....
Did a 12.55 last week at WSID , I will be going back soon to try out the Anti-lag feature on the Haltech...