Manley 04+ Subaru WRX STi (EJ257) 75mm DE-STROKED 99.5mm STD Bore 8.5:1 Dish Piston Set with Rings

Manley 04+ Subaru WRX STi (EJ257) 75mm DE-STROKED 99.5mm STD Bore 8.5:1 Dish Piston Set with Rings

Marsoni

M251S

$349.62

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

Manley 04+ Subaru WRX STi (EJ257) 75mm DE-STROKED 99.5mm STD Bore 8.5:1 Dish Piston Set with RingsOur 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. This Part Fits: Year Make Model Submodel 2006 2012 Subaru Impreza WRX 2006 2007,2010 2012 Subaru Impreza WRX Limited 2009 2012 Subaru Impreza WRX

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I was worried it wouldn't work as well since it's 50 mil and I thought I got the wrong thing. Nope! Works great. Did all four doors on my 93 civic and I have enough for the floor I think. Solid price. Noise reduced by about 5 decibels hive difference. Very sticky and easy to apply I'm so happy I was able to cover most all of my car. If I need more, definitely buying this since I got so much extra and I thought I would. PS: that five decibel thing is only with the four doors. My firewall is next and then my floor, but it's such a huge difference

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Reviewed in the United States on April 2, 2026

Verified Purchase

Teresa A. Patterson

Lowell, US

★★★★★ 5

Quiet your vehicle noises

Size: 50 sqft

Put this in our high roof van and couldn’t believe how much quieter it was at once. Really cut down on the vibration noise Nice and easy to install just peel n stick. Was also easy to cut with scissors for smaller areas. Seemed to be really nice quality. Didn’t notice any odor.

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Reviewed in the United States on June 9, 2026

Verified Purchase

Stephanie

Lexington, US

★★★★★ 5

Sound deadening the Hot Rod

Size: 20 sqft, Size: 20 sqft

Works well, good value for the money. It’s very sticky and conforms to what you are applying it to. One 20 sq ft box did approximately the passenger side

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Reviewed in the United States on April 3, 2026

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M. Del

Charlottesville, US

★★★★★ 5

Good stuff

Size: 50 sqft, Size: 50 sqft

Good stuff. I did a lot of work on my 91 Toyota Land Cruiser 3FE. I did the inside and outside doors, as well as the under-hood area, with some extra work. I like this stuff. It sticks down good but you have to clean your surface so there's a good grip. I think these are going to do well for noise cancellation. The deadening material does well with absorbing vibrations too. But the install roller tools it will come in handy. Trust me trying to do it by hand is not worth it.

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Reviewed in the United States on June 6, 2026

Verified Purchase

Charlie J

Belleville, US

★★★★★ 4

Good quality

Size: 10 sqft

I wish it was a little better but it definitely works great and look good for how cheap it is

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Reviewed in the United States on January 23, 2026