I've been chatting with someone who's organising a group buy of fabricated inlet manifolds specifically for the mk6 ST.
I'm putting up this thread here so members of this forum have the opportunity to get hold of one if they wish.

Some background:
The company making it is called Fusion Fabrications http://www.fusionfabs.co.uk/
There is no affiliation with the company making these, the idea to have a manifold fabricated was driven by the rarity of the Mountune manifolds (the only other aftermarket manifold made specifically for a fwd 2.0L Duratec, no longer available new and twice the price of this for a used one), and the Cosworth/Pumaspeed design that results in a loss of low down torque and was intended for a larger engine. The idea for this has been thrown around a few times in the past but never lead to anything. This manifold was designed to suit the 2.0L and the runners were chosen to give good mid range torque, which resulted in something that looks pretty similar to the Mountune inlet (see below)

For best results you will need the supporting modifications such as fast road cams, full exhaust etc and a custom remap. We've been in touch with Dreamscience and they are working on a map to work with this manifold, this should be available once a test car had been to Dreamscience HQ to their dyno.

The 1st batch FF is looking to make is a minimum of 10 inlets @ £650 each. A 50% deposit will be required Payment will not be taken yet of course, the details are yet to be confirmed and there aren't any concrete dates yet because it depends on getting enough people involved. This isn't an off the shelf product; each one is made to order by hand.

If you are interested, please contact Fusion Fabrications via their facebook page (see http://www.facebook.com/fusionfabs/posts/1009875959118013) and let them know you are interested, but only if you are seriously looking to put down a deposit and buy one. Please also post on here so I can keep track of the numbers, for the 1st batch we are close to 10 already.

A Thermal Gasket will also be needed which will work out at £25 if we get 10+ orders for the inlet (usually £43.00 each outside of group buy) http://www.ferriday.co.uk/thermal-products/

Here are some details of testing quoted from another page. The prototype manifold was tested on a 2.3 which obviously isn't ideal but the main idea was to show the difference between the Cosworth style and the Fusion Fabs inlet. There are also some pics and a video of the sound.