Hi mate, thanks for looking.
At the current state of tune you're not going to notice that much difference between a 2.5" and a 3" pipe. Its a pretty quiet install, louder than standard but definitely not police attracting loud. In fact I'd be suprised if its even over 90dB.
No VVT rattle.
No BOV, just the standard re-circ plumbing. However, at 1 bar boost you definitely get that pigeon noice if you lift off when the turbo's on boost, so you're safe there
The car's near Wimbledon, SW18.