The forged slipper skirt pistons we sell are made by AA, and have had a graphite base anti-friction surface treatment done around the skirt below the rings. We recommend them for race use only. They are made in Asia, and are very good pistons, but perhaps are overkill for a street-driven car.
Cima-Mahle pistons are made in Brazil and are actually pressure-cast, not forged, and are a great choice for a car more intended for street use.
