It's a BLT so newer than the ASZ, basically the same thing though, the standard KKK turbo is good for about 170bhp, the Garrett VNT-17 a bit more.
Pretty much what you said, Forge FMIC, 3" turbo back exhaust, Allard hybrid turbo, EGR removed, a few small breathing mods and a custom map(2 bar). Originally the torque was held back to protect the clutch but have since gone back for more….Now also got h2o/meth injection which works nicely – max boost and torque at 2300-2400rpm.
Mine's a Skoda but same as all the other VW/Audi/Seat.
LMK if you want a print out, it's no rocketship but it embarrasses some quick motors and is ultra reliable.
As for economy it's the torque that does it, you can just surf on the top of the torque wave so to speak, even giving it some I still get above 30mpg, my overall average is high 40s.