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  • DD-EFI 12.3″ Pro Dash for 84-87 Buick Grand National

    $999.95$1,174.95

    DD-EFI 12.3" Pro Dash Megasquirt Digital Dash 12.3" Pro PNP Dash for 84-87 Buick Grand National Build Time up to 6 weeks The DD-EFI 12.3" Widescreen Digital Dash is the 1st fully Plug-N-Play Digital Dash that can be installed using any Megasquirt eq...

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  • DD-EFI 12.3″ Standard Dash for 84-87 Buick Grand National

    $699.95$874.95

    DD-EFI 12.3" Standard Dash Megasquirt Digital Dash 12.3" Standard PNP Dash for 84-87 Buick Grand National Build Time up to 6 weeks The DD-EFI 12.3" Widescreen Digital Dash is the 1st fully Plug-N-Play Digital Dash that can be installed using any...

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  • Buick Grand National 1984-1987 MS3Pro PNP ECU

    5 out of 5
    $1,149.99

    (P/N: MSPNPPro-GNX8487) The MS3Pro Buick Grand National Plug and Play Engine Management System  Fits 1984-1987 Buick Regal with the 3.8 Turbo V6, including Buick Grand National, T-Type, and GNX.  This powerful PNP ECU gives you FULL CONTROL of all as...

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