Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.55mm +.05mm Bore 8.5:1 Dish Piston and Ring Set

Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.55mm +.05mm Bore 8.5:1 Dish Piston and Ring Set

Marsoni

M251S

$349.62

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

Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.55mm +.05mm Bore 8.5:1 Dish Piston and Ring 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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This a great little phone mount. It works for my iPhone 17 pro max. I drive a lot of dirt roads where I live in the mountains, and the magnet holds up to plenty of bumps without dropping my phone. Easy to install. Pros: -very simple installation -strong magnet -arm rotates for adjustment -ball and socket joint allows tilting with a good amount of resistance to hold its position (when fully tightened) Cons: - for model 3 users, anything other than next to the steering wheel can block a portion of your windshield viewing area -could have more modularity if offered with more arm attachments Conclusion: RECOMMENDED. Very stable and functional mount with a minimalistic design that still allows for some adjustability. If magnet weakens over time, or the sun damages the plastic to the point of breaking from brittleness then I will post updates. I will also update for any modifications I make for more adjustability.

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Reviewed in the United States on April 26, 2026

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Jamie J. Breustedt

Grantham, US

★★★★★ 5

This economical solution works perfectly

Color: Black

Very happy with this car mount. The magnet is plenty strong to securely hold my iPhone in its magnetic loop case. It’s plastic but it’s sturdy and fits on my Model 3’s screen perfectly. It has an adjustable height that I can mount my phone with full clearance of my steering wheel. Don’t waste your money on a metal mount, this inexpensive mount serves the need perfectly.

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Reviewed in the United States on April 22, 2026

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Anthony Jones

Birmingham, US

★★★★★ 5

Great for Tesla

Color: Black

Perfect in my Tesla. It’s sturdy and never drops my phone.

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Reviewed in the United States on May 23, 2026

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WillB

Natrona Heights, US

★★★★★ 1

Mount presses on the back of the screen Too hard

Color: Black

Waste of time. Doesn’t mount well. The screen shows visible backlight stress from where the mount presses on the back of the screen Returning it same day

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Reviewed in the United States on May 13, 2026

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I Agoren

Grantham, US

★★★★★ 5

Good option for FSD drivers with a thin skin

Color: Black

Works great. Holds the phone very well and can be repositioned very quickly to accommodate various driving modes like laid back and deep or focus edge of your seat with getting yelled at by FSD (not really self driving)

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Reviewed in the United States on June 1, 2026