Yeah, I was like "Um, wtf?! This isn't a GM-specific site." then I realized that since the G6 from GM isn't turbo'd (and he's from South Africa), he might have meant the MkVI.
I've got the Forge DV spacer. It's working flawlessly, but with my additional boost levels, it's loud as shit. Might eventually take it off, but for now it's on as a stop-gap to prevent any DV 'splosions.