Painless Performance 60716 EFI Harness with VATS Removed ECM for 1999-2006 GM Gen III 4.8/5.3/6.0L

This harness is standalone and is not intended to replace the OEM engine wiring. Standalone harnesses are intended to run the designated engine & transmission only, generally when swapped into another vehicle. This harness is designed for the 1999-2006 4. 8L, 5. 3L, 6. 0L mechanical throttle body engines using an LS1/LS6 PCM with a 4L60E, 4L65E, 4L70E, 4L80E, 4L85E, or manual transmission. 2003-2006 Engines will require a mechanical throttle body to be installed. 2003-2006 engines which were originally flex fuel will also require Delphi Multec 2 (factory truck style) injectors to be installed. Harnesses do not include connections for the rear O2 sensors or fuel tank pressure sensor but are available separate. Included with this kit is an 0411 ECM Painless Part #60718. This ECM has the VATS removed and is loaded with a 6. 0/4L80E truck tune. Further tuning will be required by a local tuner.

• Painless fuel injection wiring utilizes all new TXL wire, OEM fitment connectors and grouped harness breakouts making for an easy install and saving you from using old re-worked wiring; Machine crimped terminals match OE quality
• Every EFI harness is tested before leaving our facility, ensuring that each connector is properly pinned out and seated no chasing mis-pinned connections with Painless EFI wiring
• See product details below for additional fitment information
• When reliability and performance can't be compromised, you want TXL Wire - not the inexpensive primary wire you find in other harnesses; High strand count copper and high-quality insulation makes for high abrasion resistance and easy routing
• American Made, American Proud Since 1990: Every Painless harness is proudly produced in Fort Worth, TX, where we also staff our unmatched Technical Support department. ; Need help during install simply give us a call
• Fit Type: Universal Fit