8 Piston and Rings Kit STD 93mm FOR Turbo S 4.5T M48.50 Package Includes: 8 Piston Assemblies 8 Piston Ring Sets (for 8 pistons) OEM Reference Number: 94810303164 Compatible Vehicles: Model: Turbo S (955 9PA) Engine Code: M48.50 Displacement: 4.5T Bore Size: 93mm Year Range: 2006–2008 Installation Information: Removal of existing piston and ring assemblies is required.Piston assemblies must be oriented according to the engine manufacturer's specifications for valve clearance.Piston rings must be gapped to specified tolerances before installation.Piston skirts and cylinder walls should be cleaned and lubricated with engine oil prior to insertion using a piston ring compressor tool.Compatibility Note: This is a third-party replacement component.Brand and model references are included solely to indicate fitment.