Manley 04+ Subaru WRX/STi (EJ257) 83mm Stroker 99.5mm STD Size Bore 8.5:1 Dish Platinum Piston Set

Manley 04+ Subaru WRX/STi (EJ257) 83mm Stroker 99.5mm STD Size Bore 8.5:1 Dish Platinum Piston Set

Marsoni

M251S

$443.93

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

Manley 04+ Subaru WRX/STi (EJ257) 83mm Stroker 99.5mm STD Size Bore 8.5:1 Dish Platinum Piston SetOur 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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Much thinner than I expected, but installation went better than I'd thought it would. Needed to line the interior of the engine cover of a Ford E450 RV. Tried nitrile gloves, but they stuck to the material so did it bare handed. Cut easily with a fresh razor blade. Pressed in place with a plastic putty knife. We'll see the effectiveness on the next trip.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on July 3, 2025

Verified Purchase

Kev

Carnegie, US

★★★★★ 5

Makes For Quiet Rides

Model: 10 SqFt(0.95 SqM)

Comparable quality and performance to name brand competitor. It sticks on strong, easy to apply, and does make a difference in sound reduction. Turn your hollow shell sounding vehicle panels into solid sounding walls.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 15, 2026