There is probably a justification for this price difference between those 2 brands.
Paul
Yes there is, BCS are not trading on a name/reputation gained years ago before other companies started offering
comparable better products, they trade only on word of mouth from happy customers, I am very happy with my BCS (as are the legions of others going the same route).
A quick look on the many forums will show that lots of Millteks have suffered failures.
I have heard the milltek system on a stage 1 GTI and it sounded good, but not as good as the Powervalve BCS system (something that Milltek dont offer or are they likely to copy it in the future)
RR is lucky as I believe his is a custom designed system, not std, might explain the quality/longevity.
Buying a Milltek is only going to contribute a few hundred quid at best to your economy, buy the BCS and donate the £150-200 you will save compared to a Milltek to the irish government, this way they get the full £200 instead of only the Tax on it