Chip, All the work was done by Harvey at SCS The original spec I went for was a T34 with a genuine .55 housing, as I didnt want much if any lag, but the spec changed come dyno day when Harvey unexpectedly bolted the GT28 on, and when I saw the figures it stayed

On the road, if you nail it from 2500rpm its INSTANT boost, and since it has been live mapped, it peaks at around 2.2 bar, backing of to around 1.8/1.9 to 6000rpm, then tails off.

Here is a pic on the dyno and in the car.......