Yeah, sorry guys, it's an issue with the mod's reduced clipping distance from the sub. At the moment it's a bit of a tradeoff between how close you can get the camera to the sub, versus the occurence of these glitches. At narrow FOV these are less obvious, at regular FOV though it still needs a bit of tweaking.
Kinda busy with work at the moment so I can't tweak it out just yet. Next weekend I'll give it a closer look
If you ask me, it's not a terrible tradeoff at the moment though...