The Supertech piston set for VW 2.0L ABF Rally Gr.A uses an 83.0mm bore and 3.3mm domed pistons, offered as a set of four pistons with rings excluded. Catalog reference 895052-50 is provided in the description; these pistons are intended for ABF cylinder assemblies that require the specified bore and dome configuration.
Supertech VW 2.0L ABF Rally GrA 83mm Bore 3.3mm Dome Pistons - Set of 4 (895052-50) (Excl Rings)