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Manley 2.5L Forged Pistons 04+ STi and 06+ WRX

Manley 2.5L Forged Pistons 04+ STi and 06+ WRX

Your Price: $800.00
Retail Price:$1,200.80
Your Savings:$400.80(33%)
Part Number:Manley 612

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Pistons Size
99.5mm STD Bore, 8.5 Comp. Ratio
99.75mm (+.25mm) Overbore, 8.5 Comp. Ratio
100mm (+.5mm) Overbore, 8.5 Comp. Ratio
99.5mm STD Bore, 9.8 Comp. Ratio

Manley forged and dished pistons for the 04-07 STI 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 machining results in an exact compression distance as well as precise lock ring groove spacing, size and concentricity. Manley pistons are available in standard size as well as a wide variety of oversize/overbore options to accommodate any high performance engine build.


All Manley pistons include a full set of four (4) pistons, piston rings and hardware.

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