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COBB Realtime Tuning: Changes can be made to the map in realtime
fresh from our R&D department
A blue anodized billet cap finishes off the included fill tube for windshield washer fluid
2011 Subaru Impreza STi Sedan MT USDM
100% welded construction for added strength
JE J100F1-4040-5 Piston Ring Set (4.040 in. Bore, 0.0640 in. Top / 0.0640 in. 2nd / 0.188 in. Oil, 1 Cyl.) ymm_33 COBB Realtime Tuning: Changes canDescription JE J100F1 4040 5 Piston Ring Set (4. 040 in. Bore, 0. 0640 in. Top 0. 0640 in. 2nd 0. 188 in. Oil, 1 Cyl.) JE Piston Rings are designed to maximize Horsepower HP through precision sealing of combustion pressure. They are available in a wide selection of sizes, materials, and thicknesses to suit various engines. JE Pistons also offers custom Piston Ring services, including back cutting, Dykes cutting, lapping, grinding, and PVD coating.
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