· Harnesses allow for installing the PCM underneath the dash of your vehicle with a sliding grommet seal for that professional leak proof look<br> · Perfect control of 4L60E hydraulic torque converter, mechanical transmission, oil pump, hydraulic and electrical<br> · All harnesses come with the needed Dash Connections, which include Speedometer, Tachometer, Park Neutral, TCC, Malfunction Indicator, and a DLC Port.<br> · All Harnesses are long enough for the PCM to be mounted under the dash (ADDED 36" FOR EASY COMPUTER MOUNTING)<br> · 36" Added Length For Easy Computer Mounting<br> · Upgraded Wire For Running Those Big Injectors (will run any size injector without issues)<br> Fits：<br> For 1997-2006 Drive By Cable LS1 Engines with 4L60E(DBC) 4.8 5.3 6.0 VORTEC<br> Package included:<br> 1 Set of Standalone Wiring Harness<br> FEATURES:<br> 1) All parts are hand inspected off the line before packaging and once again by our team before shipment.<br> 2) According to the original factory specifications.<br> 3) Perfect match for the original car.<br> 4) Easy installation.<br> 5) Stable characteristics, high reliability.<br> 6) Aftermarket Products with Premium Quality.<br>