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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. Customizable – Painless Performance

    Customizable Wiring Harnesses Car Applications Truck Applications Race and

  4. Chassis Wire Harness – Painless Performance

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

  5. Race and Accessories - Painless Performance

    Race and Accessories Accessories Battery and Charging Harnesses Switches & Switch

  6. All Product Categories – Painless Performance

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

  7. 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

  8. 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 …

  9. Pro-Series – Painless Performance

    Pro-Series Harnesses Designed to meet the demands of the most professional builder!If you have been using our 21 or 28 Circuit Customizable chassis harnesses over the years, it’s time you …

  10. 28 Circuit Classic-Plus Customizable Bulkhead ... - Painless …

    The provided to-scale peel and stick template makes firewall trimming easy. This harness comes with open ended ignition switch wires that can easily be adapted to any ignition switch out there.