there is something wrong with my LC - to be looked into on Friday. but when i've it in reverse, it can stay open if you release throttle to activate dump but keep throttle in that position rather than continuing to come off. Sounded like a referee's whistle! But, i reckon i have a
problem with my car, so that probably doesn't apply!
I've actually got the stock bosch one back on and had no problems with it at all. In fact the only reason I got a 007 was because everyone else has one - so it must be good, but i don't think it's done anything of an improvement. My opinion, but i've got one and it isn't on my car.
The DV is located close to the turbo and gets very hot, which is why there have been problems with the plastic stock ones. Mine is fine though, and i am incertain as to apart from durability, the piston type may actually be inferior in terms of response time. I have spoken to more than one specialist in VAG performance industry - not a dealer, not from forge - and both have said "stock ones are fine, just get too hot and can get damaged."
The firmer spring may improve things i've you've been remapped, but I didn't notice much, if at all.
I reckon it would be best to get a cold side relocation kit and stick the stock one there.