Painless Performance Products - Official Site Celebrating 29 years as the leading manufacturer of automotive wiring. Whether it be hot rod, street rod, muscle & classic car or universal wiring harnesses and accessories, Painless has your classic car/truck, off-road rig, or race car covered. Amazon: painless wiring harness kit: Automotive wwwon›Search›painless wiring harness kit1-24 of 228 results for Automotive: "painless wiring harness kit" "painless wiring harness kit" Cancel. Painless 10106 Classic Customizable Jeep CJ Harness (1976-1986, 22 Circuits) by Painless. $430 $ 430 00 $451. Only 15 left in stock - order soon. FREE Shipping on eligible orders Painless Wiring - Painless Performance Products - Custom www›Painless Performance ProductsPainless Wiring. Painless Performance Products is the leader in automotive wiring and electrical products. The winter of three Best New Product SEMA Awards, Painless products are designed by real engineers using the latest in diagnostic equipment to ensure consistency in manufacturing and an accurate and easy Painless installation.