Fitted mine today, WOW, what a difference!
I had a pencil sized hold in mine, but it is a completely different car now, best £40 I have spent in ages.
Was told by VW they only do the G now.
I am no mechanic by any means, its not hard, just fiddly being under the car with not huge room to work in, but ultimately its just 3 X5 mm allen key bolts and a clip. Practice on a clip in the engine bay before hand, makes it much easier under the car.
Those who haven't checked, do it, feels like it has 30BHP more than before