Turns out the car already had a GFB DV+ fitted, but after reading this post I asked them to swap it out anyway so that I could compare and I could easily drop the GFB back in if I needed to.
Anyway, even though it's only been a day here are my initial thoughts.
I took it on a 'sensible run' with the kids through A & B roads and clocked up 38 mpg average, way more than <30 I was getting on a long-distance cruise! This is a huge difference
I know that better fuel economy isn't everyone's idea of an improvement, and let's be honest I wouldn't have a GTi if I was that bothered about it, but when you do quite a few miles it's nice to know you can get reasonable mpg when you want to. The car also seems to start slightly quicker, has smoother idle and even appears slightly quieter although this could all just be my perception.
The throttle response does seems a little slower, but not by much and when I floor it it seems to pull just as well up through the revs.
Also, no fuel smell on cold start anymore so maybe the GFB DV+ was faulty anyway?
I know it's early days but all in all, I prefer the way the car drives with the Rev G fitted but will give it a few weeks of driving before I give my final verdict.
Hope this helps some of the guys who are undecided which DV to fit.
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