Home | E Z Wiring | Florida USA At EZ Wiring, we strive to bring you the best harness for the best price. Our harnesses are universal and can fit just about any application. We use top quality gxl cross linked polyethylene jacketed wire to resist heat, oil and water. Every wire in each kit is labeled every 5 inches to make your installation as easy as possible. Painless Wiring - Painless Performance Products - Custom Painless 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.