Yes but even simpler than that it is just a hubcap within an hubcap. I found a smoothie hub cap that the dimensions fit into (close to) that of the ID of the factory hubcap. Let me load more pics and you will see how easy it was. Just have to weld the one hubcap in flat and concentric to the Toyota hubcap..... but they kind of self align so fairly easy. I think i need to POR15 the back of the hub cap as i ground off some of the plating when i ground down the welds. The geometry of the smoothie wheel will not be a "flush mount" to the hubcap as they are different diameters. However , to me it doesn't really make that much difference, you can't tell unless your right up on it. Only downside i see is that it will allow a rock to get wedged between the hubcap and wheel. Your 16" rim will use the same hubcap. as it shares a common center rim geometry as the 15". 17" and 18" smoothie uses different configuration hubcap i did that research as well and found one that will work on those as well. I fortunately live close to summit racing so i played around and found the ones that work.