Manley 99.75mm Bore +.25mm Oversized Ring Set Subaru WRX / STI EJ257 2004-2021

Part #: 46997 - 4. Manley's pistons for Subaru EJ257 feature Napier - style second rings and high - tension oil rings from Total Seal. These components ensure excellent oil control. This ring set is designed for 2004 and later Subaru WRX/STi (EJ257) with a 99.75mm bore and 1.2mm x 1.2mm x 2.0mm dimensions.

Using this Manley ring set is simple. First, make sure your engine is clean and free of debris. Carefully install the rings according to the engine's specifications. When handling the rings, be gentle to avoid any damage. As for maintenance, regularly check the oil level and its quality. If you notice any oil leaks or a drop in oil pressure, it's a good idea to inspect the rings. Also, follow the manufacturer's recommended oil change intervals. Keep an eye on the engine's performance, and if there are any unusual noises or vibrations, it might be time to have the ring set checked by a professional.