A bit of feedback for those with garden variety Golfs. I just fitted the DTUK pedal box+ to my new 1.4TSi Golf. I was hoping to eliminate the dead inch or two of throttle travel and hopefully mask the low-rev lag of this 1.4 engine.
A quick drive around the block on the green city and red sport modes showed the pedal box has completely eliminated the dead pedal travel on both settings. Throttle response is now instant and crisp. It is amazing how much more alive and responsive the car feels - even with the 150bhp 1.4. I expect a GTI would really benefit!
Unfortunately the pedal box hasn't eliminated the 1.4's low-rev lag, but has masked it to a degree. Instead of a solid two-second wait before any response to a prod of the throttle (eg, exiting slow speed right angle turns into a side street) it now responds after a much shorter delay as revs build more quickly into the torque band.
All up I think this is a tremendous product. It does exactly what it says on the box. 10/10.