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

Easy Shipping

Quick Dispatch:

Your Radium Engineering 2015+ Subaru STi Air Oil Separator-Return Kit orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Radium Engineering 2015+ Subaru STi Air Oil Separator-Return Kit ships.

Need Help?
Questions about Radium Engineering 2015+ Subaru STi Air Oil Separator-Return Kit, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Radium Engineering 2015+ Subaru STi Air Oil Separator-Return Kit in your area.

Get Shipping Estimates

Country Zip/Postal Code

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

The button is super wobbly and feels like itll break at any moment. The zipper quality also isnt great even when im not wearing them the zipper cant go above like 80% when I wear them itll slowly unzip if I twist or turn my body over a few hours. There's also not a lot of room for your bits so maybe go a size up. Other than that rhe material is comfy and has a bit of give so unlike other skinny jeans you dont feel restricted. The color is also super vibrant and lovely. Im not gonna return them unless the zipper breaks but idk if ill buy another pair if the button is like this.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on October 11, 2025

Verified Purchase

Amazon Customer

Birmingham, US

★★★★★ 5

Fits great

Color: Black, Size: 42W x 32L

Fir perfect

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 25, 2026

Verified Purchase