300 is achieved regularly at stg1, most that we dyno/tune will see 290-305
like this one:http://www.dyno-tuning.co.uk/gallery/vwGolfEdition30.htm
Our dyno is generally reared as being a 'low reader' compared to others in the region as well. One of our customers achieved 297bhp/295 ftlb on ours and 334bhp and 329ftlb on a Dastek and similar figures on a Maha.
look past the peak figures though, its more about the power delivery and torque curve.