Proflow's LS standalone wiring harness kits offer the best in aesthetics and reliability, designed specifically for GM LS engines produced from 1997 to 2004. They are available for both cable-driven and fly-by-wire vehicles with 4L60E or T56 transmissions, and will completely replace your old harness.

Note: These are based off original LS harnesses. Some plugs may be different depending on engine build date.

Kits Include:

• Fuse/Relay Box
• Fuel Pump Control
• Fan Controls
• Check Engine Lights
• Speedometer/Tachometer
• OBD2 Compatibility
• Pedal and Throttle Control
• MAF/MAP Sensors
• Coolant Sensors
• Alternator Plugs
• O2 Sensors
• Crankshaft and Camshaft Position
• Fuel Injectors
• Coil Packs
• Knock sensors