This is just in from RPW, so if anyone is interested give us a shout!
"RPW is beginning production of a new product range being manifold insulator blocks.
These are a non heat conductive block that would stop heat transfer from entering into the upper manifold on the FTO V6 vehicles. On our own testing on our own vehicle with the lower spacer only, we dropped manifold temps by around 30%.
These will be two spacers one that goes between the lower manifold and upper manifold and another between throttle body and manifold. By stopping the transference of heat to the upper manifold, the incoming air is no longer heated and in effect - is now cooler air, more power and torque.
Best of all fits in around 1 hour and no retuning or mods needed. Cheap, easy and very effective modification.
There is a link below on more informative data
http://www.rpw.com.au/Products/Intake%2 ... blocks.htm "
These should be cheap enough, no more than 150 yoyo's but the same as everything the more we buy in a group the better!