Manley 99.5mm STD Bore, 9.8 Comp. Pistons Subaru WRX 2006-2014 / STI 2004-2021 vendor_Stop Tech Silicone has a much higher

Silicone has a much higher strength than the OEM rubber hoses which will prevent the hoses from expanding

The OEM mounts are made out of very soft material and have voids in them that cause flex

5L with an 90mm cylinder bore

Weight: 12

plus maximum airflow for superb performance results

Manley 99.5mm STD Bore, 9.8 Comp. Pistons Subaru WRX 2006-2014 / STI 2004-2021 vendor_Stop Tech Silicone has a much higherPart #: 612100C 4 Manley forged and dished pistons for the EJ257 are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Round wire locks, tool steel wrist pins and piston rings are included with every set at no additional charge. A proprietary multi step top ring groove machining process assures optimum control of the groove's size, geometry, flatness and finish. Precise pinhole