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Support for non-standard applications is limited compared to a fully plug-and-play install
the MS3Pro Module provides a clean and powerful platform
weather-resistant connection
Nitrous Control Systems
and wideband controllers
Dash PNP Install Harness – 84-87 Grand National Options:84-87 V1 Grand National Analog Harness Support for non-standard applications isUpgrade your Buick Grand National with ease using this Plug and Play Installation Harness, designed specifically for use with DD EFI Digital Dash systems. It allows seamless integration using the vehicles factory wiring, making installation clean and straightforward. Key Features Plug and play design eliminates wiring guesswork Compatible only with DD EFI Digital Dash systems Engineered for Grand National platforms Streamlined connections ensure a