99/00 WRX/STi AFM housing with the AFM removed and an alli blanking plate in place. Ideal for those with 99/00 WRX/STi and an aftermarket ECU that doesn't use the AFM. This means you can keep your AFM safe and sound ready to go back on when/if you remove the ECU. It also means there is less restriction in airflow in your inlet tract (cos the AFM sits right smack in the middle of the housing).

Described simpler, this is the tube that goes between the air filter and inlet pipe, the same tube that houses the AFM assembly.

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