Have heard a lot of good things about The Phirm recently and seriously considering using them once I've purchased my S3 despite living a fair way away from them.
Noticed on their Facebook page that they are currently working on a 500bhp S3 for a customer (anyone on here?)
be very interested to see the results
Osman's Big Turbo 8P S3 Build | Facebook
Each pic has commentary to it...