Radium Engineering 2015+ Subaru STi Air Oil Separator-Return Kit

Radium Engineering 2015+ Subaru STi Air Oil Separator-Return Kit

Marsoni

M251S

$213.72

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

Radium Engineering 2015+ Subaru STi Air Oil Separator-Return KitAir oil separator kit for the late model Subaru platforms. Includes all parts need to complete the installation. AOS is fully serviceable. This Part Fits: Year Make Model Submodel 2015 2020 Subaru WRX STI Base 2015 Subaru WRX STI Launch Edition 2015 2020 Subaru WRX STI Limited 2016 Subaru WRX STI Series. HyperBlue 2018 Subaru WRX STI Type RA

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

I don't know how they work but it's wonderful. I've had rough heel problems for a long time. I wear these everyday and my heels are not rough. They're not baby bottom smooth, but they are not ever going to be. These heel socks also oncce they are properly positioned snap onto the heel. Properly positioning them is easy when you put them on your foot with the heel cup in the correct orientation.

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Reviewed in the United States on April 14, 2026

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beachx

Chelsea, US

★★★★★ 3

Too small

Material Type: Gray - 3 Pairs, Size: X-Large

Too tight! Even size large used for a man with smaller feet is too tight. Also, no instructions for use or care.

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Reviewed in the United States on May 21, 2026

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Jo-Ann Epstein

Whiting, US

★★★★★ 5

Good fit

Material Type: Black - 3 Pairs, Size: X-Large

My husband just started using these and they feel comfortable. Hasn't used them long enough to see if his heels are better. He has a high arch so I bought him the XL and they fit perfectly.

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Reviewed in the United States on April 24, 2026

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M.R.

Boise, US

★★★★★ 5

No more painful cracked heels! These really do work!

Material Type: Black - 3 Pairs, Size: X-Large

These really do work well. This is one of the first winters that I have not experienced painful, cracked heels. They are long lasting, and definitely make my heels smoother and softer after wearing them. For the first few times wearing them I simply went with the moisturizer embedded in them. After a few uses I then covered my heels with Aquaphor Advanced Therapy Healing Ointment. This worked even better, and I would recommend it. I am very glad I bought these. Of note, I have really big feet that are quite wide and the XL are a little snug but not uncomfortably so. I use them overnight, but also have worn them under socks and they work fine.

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Reviewed in the United States on February 3, 2026

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K. Davis

Los Angeles, US

★★★★★ 5

Works for foot psoraisis

Size: 2 pairs black L

Got these for work (service industry) to reduce issues with psoriasis and blisters while putting on 20k+ steps a day. Over time the wounds healed and I could work without so much pain. I now don't use them all the time like I used to, only when a new lesion or blister appears, too prevent a breakout. Tip: if you're not in full breakout, wear thick socks under these as a barrier to friction.

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Reviewed in the United States on April 28, 2026