Rios looks like a chrome cover, not a girdle. Beware, don't purchase one of the chrome ones off of Ebay from HotrodsUSA. Damn thing wouldn't clear the ring on my 355s, had to go back with the stocker.
Another advantage to the girdles, vs. that chrome cover, is that the girdles usually have drain and fill plugs. Not that you should have to change the fluid that often, but IMHO it would be worth it.