Wisher Performance AuxJection kit for GM LT4 engines, featuring the black billet adapter plate, fuel lines, and plug-and-play wiring harness for factory ECU integration.

2022-2026 Cadillac CT5-V Blackwing

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  • Mass Airflow Flow (MAF) limit extension software for GM ECUs to support high horsepower forced induction builds

    MAF Limit Extension | E90/93/99

    MAF Limit Extension | E90/93/99
    $200.00 USD
    $200.00 USD
  • Power Enrichment vs Boost software calibration for GM E90, E92, E93, and E99 controllers by Wisher Performance

    PE VS. Boost | E90/92/93/99

    PE VS. Boost | E90/92/93/99
    $150.00 USD
    $150.00 USD