guys below is the contents of an email I have just received from Turborevs, i'll be ordering when stock arrives and have already suggested a number of members would be interested all depending on results seen after mine is tested.
hope this helps
Hi,
We can confirm that the FMIC kit will fit the Mk4 Golf, Audi A3, A4, Seat Leon Cupra with VAG 1.8T engine. We are not too sure about the Cupra R. However if you are willing to try it on your car and provide us with feedback then I'm sure we can come to some agreement.
The dimensions of the core is: 510mm x 165mm x 70mm.
Currently we are out of stock of this kit we are expecting more stocking arriving 1st week in December so if you contact us then we can come to an arrangement.
thanks
Jav
Turborevs Team
hope this helps

Hi,
We can confirm that the FMIC kit will fit the Mk4 Golf, Audi A3, A4, Seat Leon Cupra with VAG 1.8T engine. We are not too sure about the Cupra R. However if you are willing to try it on your car and provide us with feedback then I'm sure we can come to some agreement.
The dimensions of the core is: 510mm x 165mm x 70mm.
Currently we are out of stock of this kit we are expecting more stocking arriving 1st week in December so if you contact us then we can come to an arrangement.
thanks
Jav
Turborevs Team