There could be some benefit in these .... they are replacing the std pipe from the turbo to the intercooler. On the Neuspeed site, referenced by Pullstarter, look at the increase in diameter and smoothness.
And here is the AWE tuning site .... http://www.awe-tuning.com/pages/shar...ain&IL=tsi_top
Nothing to do with the downpipe.
Group buy anyone ? I want 1 ASAP .....