OPINIONS! BOV & Dump valves

had a bov on my old car for 3 yrs, hated it after 6 months.. ko3 turbo and was underneath and just couldnt be ersed going under to take it back off again... A nice cai and upgraded divertor valve is the way to go
 
i have forge, and oem rev d (which is now on the car), getting the gfb dv+ in a few days hopefully :D
that one i wouldn't touch, as it only makes noise and it lets air out of the system.
 
Get a revision G OEM at less than £41 or the GFB DV+ at nearly £100. There are enough noises going on without Subaru style noises too!