Fjord cabin · Mist-ready shipping · Free over $75

Subaru OEM Rear Oxygen Sensor Subaru STi 2008-2021 | 22690AA850 CM Part #: 571101

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SKU 76830421341
USD149.00 USD174.00

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Ships within 48 hours · Estimated delivery Sep 12 - Sep 17

Fjord side

Cool mist, calm waters

Layered blues for a quiet Nordic mood—built for long scrolls and clear product focus beside the sticky cabin window.

Cabin side

Warm timber accents

Wood-toned frames and chip trails keep the buy box grounded—harbor calm meeting cabin warmth without clutter.

Description

Part #: 571101

Make sure the area is clean and free from any product similar to Armor All

aggressive exhaust note without excessive drone

designed around their famous Whiteline Plus series polyurethane bushings

Each pump individually tested to flow minimum of 400LPH (100gph) @ 40 PSI

Subaru OEM Rear Oxygen Sensor Subaru STi 2008-2021 | 22690AA850 CM Part #: 571101For your: Subaru STi 2008 2021 Rear O2 Sensor The rear oxygen sensor is used to sense oxygen concentration in the exhaust gas. If the air fuel ratio is leaner than the stoichiometric ratio in the mixture (i. e., excessive amount of air), the exhaust gas contains more oxygen. To the contrary, if the fuel ratio is richer than the stoichiometric ratio, the exhaust gas contains almost no oxygen. Detecting the oxygen concentration in exhaust gas using the

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

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