6 sets of piston rings for your 3.2 liter R32 or 3.0 liter R30 engine from the MAHLE brand 03074N0 The cylinder bore size should be 84.00mm (normal size, unworn). The piston is therefore slightly smaller, approx. 83.965 mm (usually also stamped on the piston). The thickness of the two compression rings is 1.2mm respectively. 1.50mm and the thickness of the wiper ring is 2.0mm. The top ring is nitrided!!! The comparison number from VW is: (normal version without coating!!!) 022 198 151 A 022 198 151 B 022198151A 022198151B 95510392501.