I've just put down a deposit on a VRS Ltd Ed, having previously owned two other Fabia VRS's - my 1st was an '04 (TunitBox & Cupra air ducts), the other is my present April 06'er, which has all the usual Euro4 charicteristics [slightly lumpy idle / v.slight hesitation / cabin shake etc..]. Like some others here, I have put up with the 'phenomenon' so far, as the other 99.5% of the time, it's a hoot of a drive..
When my Ltd Edition arrives, I am ready to expect more of the same. What I am going to do though, is have a Euro3 EGR (9mm hole) gasket ready & waiting.. if the stutter gets as bad as I've heard from others here - on it goes.
If & when this action becomes nessessary, the car's going to the dealers for the approved fix (approx 14.5mm gasket hole) - once I get it home afterwards, on goes the 9mm version from my back pocket.. If the smaller one is 'discovered' some time in the future - well, it must have been an installation mistake by the dealers mechanic. Not my fault he fitted the smaller gasket without drilling it out first..
I hope someone can change my mine on this, as I've just come over with a small 'pang' of dishonestly/guilt and I havn't even taken delivery of the car yet..