Hobbypro

I would assume so since Sundown has said the E8v3 uses the same soft parts as the SA8. I will say the larger cast basket of the SA8 might take up a couple mm more. Your best bet is to measure the diameter of the sub then measure the mounting lip from outside edge to the basket take it times two and subtract from the overall measurement. If you don't want to do that make the hole a few mm smaller than Sa8 and try it then sand out as needed.