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

Marsoni M251S
Sale price$213.97
Pay 4 payments of $53.49 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Radium Engineering 2015+ Subaru STi Air Oil Separator-Return KitThe Radium air oil separator traps blow by oil before it can be sent back to the induction system. The collected oil is heated by the AOS to remove moisture, then allowed to drain back into the engine block, making this a zero maintenance system. Installation is done using factory mounting points. All required hardware, hoses and other items are included in the kit. This Part Fits: Year Make Model Submodel 2015 2020 Subaru WRX STI Base 2015 Subaru WRX
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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
4.8 ★★★★★
Based on 2250 reviews
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Verified Purchase
Terri W.
Houston, US
★★★★★ 1
hub caps
These have very flimsy tabs and two of the four came in with broken tabs on them already and I am having to do a return.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 4, 2024
A
Verified Purchase
Amazon Customer
Port Orchard, US
★★★★★ 5
Perfect fit
Perfect fit for teryx 800 4d
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Reviewed in the United States on July 2, 2025
B
Verified Purchase
Bert S.
Battle Creek, US
★★★★★ 2
not fit
does not fit my brute force
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Reviewed in the United States on July 6, 2025
J
Verified Purchase
Jim
Carnegie, US
★★★★★ 5
Fits great
Cant go wrong 15.00 what the heck.
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Reviewed in the United States on December 24, 2024
A
Verified Purchase
Amazon Customer
Lake Worth, US
★★★★★ 5
BMW GRILLES
As described by the seller
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Reviewed in the United States on January 22, 2026

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