Manley 04+ Subaru WRX/STI EH257 99.50mm Bore STD Size 8.5:1 Dish Piston Set - Single Piston

Manley 04+ Subaru WRX/STI EH257 99.50mm Bore STD Size 8.5:1 Dish Piston Set - Single Piston

Marsoni

M251S

$100.24

Get it in 3 business days with 1 day shipping. Friday, May 29

Manley 04+ Subaru WRX/STI EH257 99.50mm Bore STD Size 8.5:1 Dish Piston Set - Single PistonOur signature "Platinum Series" pistons feature 2618 alloy forgings, proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select part numbers. Join the ranks of professional engine builders and tuners who rely on Manley pistons for superior performance and durability.

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Called around for quotes to get them replaced and everyone was quoting over $2k just for bellows. Figured I’d give it a try. The rubber is good quality and feels soft. Time will tell but this is an easy job if you’re mechanically inclined. Make sure you replace the plastic water pickup fitting while you’re at it. Found mine to be cracked on disassembly and had to wait for a new one. Should be a easy 3-4 hour job if your not doing the bearing and only doing bellows

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Reviewed in the United States on August 26, 2024

Verified Purchase

Ben

New York, US

★★★★★ 3

Just ok

Qualities OK, but for Marine applications might want better

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Reviewed in the United States on August 3, 2025

Verified Purchase

Barbara S.