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  1. Painless Performance – Painless Performance Products – Wiring, …

    All our harnesses are made out of high-grade TXL wiring and labeled every 12-inches to make installation as Painless as possible. We also include full-color manuals that show how to …

  2. Shop – Painless Performance

    Painless Performance Products – Wiring, Switches, Relays, and More!

  3. All Product Categories – Painless Performance

    Chassis Accessory (15) Charging/Start/Ignition (23) Battery/Grounding (15) Make It Easy. Make It Painless.

  4. Chassis Wire Harness – Painless Performance

    Painless Performance Products – Wiring, Switches, Relays, and More!

  5. 21 Circuit Classic Customizable Chassis Harness ... - Painless …

    Wire your classic car once and wire it right with a Painless Customizable wiring harness.

  6. Customizable – Painless Performance

    Customizable Wiring Harnesses Car Applications Truck Applications Race and

  7. Installation Manuals – Painless Performance

    Painless Wiring Manuals Can’t find your manual? Need to reference something? Check here for all the current manuals for our parts, as well as obsolete part numbers! If you still can’t find …

  8. LS and EFI Harnesses – Painless Performance

    LS and EFI Wiring Harnesses LS Car LS Truck LS Engine and Chassis Early Vortec Early LT1 Tuned Port Injected/TBI 2003-2005 Cummins Diesel Ford

  9. 27 Circuit Classic-Plus Customizable 1973-1987 ... - Painless …

    This 27 circuit 1973-1987 GMC/Chevy Painless wiring harness was designed to fit the trucks, Blazers, and Suburbans*, whether C10, C20, or C30. It features a factory style bulkhead …

  10. 28 Circuit Classic-Plus Customizable 1967-72 GM ... - Painless …

    This Painless 28 circuit 1967-1972 GMC/Chevy wiring harness was designed to fit the trucks, Blazers, and Suburbans, whether C10, C20, or C30. It features a factory style bulkhead …