Tired of paying those ridiculous OEM prices for piston ring sets? We have your solution! Introducing the AMTuned 4.2L piston ring set specifically designed for the 4.2L RS4 and the 4.2L V8 R8! We use a combination of ring's soured from market leading ring manufacturers such as Mahle and other's to offer you a fantastic aftermarket alternative to the OEM offering. We use these in all of our in house builds. These ring packs will work on both stock Alusil bores & sleeved bores.
Each kit contains the following:
8x: Nitrided Top Ring
8x: Phosphate Napier Cut Second Ring
8x: Nitrided OEM Style Spring Loaded Oil Control Ring