LS3 / Vortec Standalone Wire Harness – DBW 4L80E (2003–2007)

Retrofit ’03–’07 Vortec engines with 4L80E transmissions hassle-free. Fully plug-and-play, sliding grommet seal for leak-proof install, GM-spec TXL wire, brand-new connectors. Perfect for LS swaps in classic muscle cars or street rods.

Includes: Complete engine + transmission harness.