Holley EFI Transmission Control Harness - For 1996-2008 GM 4L60E and 4L80E firebird Stock upper control arms with

Stock upper control arms with soft rubber bushings deflect under load and absorb power instead of transferring it to the tires

UMI’s new budget friendly 3-point subframe connector is perfect for preventing chassis flex while reinforcing tunnel brace mounts and short mounted torque arms

Choose from our signature UMI Red or sleek Gloss Black powder coat finishes

The kit is completed with Grade 10

Holley EFI Transmission Control Harness - For 1996-2008 GM 4L60E and 4L80E firebird Stock upper control arms withExpanding our transmission control options for our EFI systems, this harness provides plug and play for Pre 2009 GM 4L60 and 4L80 transmissions using a Dominator. This also contains a J4 connector to operate GM electronic transmissions.