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Upgrade your Subaru WRX STi (EJ257, 2006-2007) with a Haltech Plug’n’Play ECU Kit. Unlock advanced engine management for increased horsepower, improved throttle response, and precise tuning control.

Elite 2500 + Subaru WRX MY06-07 Plug 'n' Play Adaptor Harness Kit

STi (06-07)

Elite 2500 + Subaru WRX MY06-07 Plug ‘n’ Play Adaptor Harness Kit

$2,419.00
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Nexus S3 Plug 'n' Play Adapter Harness Kit - Subaru WRX MY06-10

STi (06-07)

Nexus S3 Plug ‘n’ Play Adapter Harness Kit – Subaru WRX MY06-10

$2,590.00
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Nexus S3 Plug 'n' Play Adapter Harness Subaru WRX MY06-10

STi (06-07)

Nexus S3 Plug ‘n’ Play Adapter Harness Subaru WRX MY06-10

$495.00
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