Killer B 08-14 WRX / 08-17 STI Air/Oil Separator w/ Plumbing

Killer B 08-14 WRX / 08-17 STI Air/Oil Separator w/ Plumbing

Marsoni

M251S

$252.50

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

Killer B 08-14 WRX / 08-17 STI Air/Oil Separator w/ PlumbingSKU: GR MV3S C Killer B Motorsport Air Oil Separator w Plumbing Subaru WRX & STI Performance The Killer B Motorsport Air Oil Separator w Plumbing (SKU: GR MV3S C), the unrivaled leader in air oil separation technology. Engineered with precision and rigorously tested for superior performance, this AOS stands head and shoulders above all competitors, delivering unmatched efficiency, durability, and ease of maintenance. Designed specifically for high

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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.
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I ended up going with another brand, which I returned because it was impossible to insert the batteries into the too-tight compartment (other reviewers had the same issue and I should have listened). So I bought this one and not only is the battery compartment ample size and easy to insert the batteries into, the company even sends you two AA batteries to start you off! I also very much appreciate the fact that you don't have to hold down the button, just push it once to start and push it again to stop. It's powerful and I love that it sits in its own stand and looks nice in my kitchen while doing so.

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Reviewed in the United States on May 29, 2026

Verified Purchase

Elaine

New York, US

★★★★★ 5

Great quality, great price and works great !

Color: Flat Black

Works great ! Quick delivery and great price and I love that it comes with a cover !

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Reviewed in the United States on June 5, 2026

Verified Purchase

mnat

Houston, US

★★★★★ 5

Good idea great product

Color: Gloss Black

I bought this as a gift. The person loves it. It’s very compact. She puts it in her bag and travels with it. It’s easy because you can charge it at home and then it’s already. She sometimes brings her charger with her so she can use it out.

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Reviewed in the United States on June 1, 2026