Plenum spacer etc

[Mannarino]

I just bought the motordyne iso thermal 5/16" plenum spacer, and plan to buy the kinetix ssv upper intake plenum to accent my injen CAI, anyone done similar upgrades?? I also just put in new the full Unorthodox underdrive pulley set up which i have noticed some good results from, but with an NA 04 350z are these plenum upgrades worth the cost? I am also looking for (not sure of the name) i think its the part under the upper intake plenum (assuming its just the lower intake?) but looking for that, I hear there are some good gains from that.
Just looking for some feedback on those parts, and if anyone has done similar upgrades and are or aren't happy w the whp and tq gains??

reply on here or pm me, especially if you happen to have either plenum set up for sale (other than the spacer since i just bought that, should be in tomorrow or early next week) Lol

[Susan]

Max did the plenum spacer and likes it. That's all I know! PM him if you want more info, as he's done a lot of research on it. :)