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Hoop up your Atomic TCU with MSD Atomic transmission control module harnesses. They are designed to fit your specific transmission model and have the proper wiring connector for a direct fit.
( 7 )
$274.95
$247.45
On Sale
Holley GM transmission wiring harnesses are designed to work in conjunction with Holley Dominator EFI fuel injection systems. These application-specific complete terminated harnesses come with a J4 connector to operate General Motors electronic transmissions. For all of your transmission management systems and accessory needs, go with Holley.
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$280.95
$252.85
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