Closed on Sunday

Year Make Model | Painless Performance

Painless Performance Products - Since 1990

Painless is dedicated to providing high quality products to our customers while keeping our employees safe during this COVID-19 pandemic. To maintain employee safety, all employees able to work from home are doing so. Our production staff has been split into smaller groups, allowing us to keep producing the high quality products you expect safely, but at a slower rate. During this time you may experience some slight delays reaching us due to a limited staff and high call volume. Please bear with us as we work through this uncertain time.

Celebrating 30 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. We don't just make wiring, we make Painless Wiring.

LS Swap
LS Swap
LS Harness
CheckEvery LS Swap Harness Is Quality Tested – Lifetime Warranty
CheckAll New Connectors/Terminals and High Quality TXL Wire
CheckOBD-II Port and Check Engine Light Included
CheckAmerican Made – American Proud Wiring Solutions!
Arrow Down  Our Most Popular Harnesses  Arrow Down
Custom Harness Pro Series GM Harness Ford Harness Mopar Harness Jeep Harness Trail Rocker Harness PowerBraid and ClassicBraid LS Swap & EFI Harnesses

News and Events

Deboss Garage - 1967 GTO gets the Painless Pro-Series Treatment!

While the factory wiring harness wasn't completed hacked in their '67 GTO, Rich at Deboss Garage went ahead and rewired the Pontiac for ease of mind.  With a build of this caliber, the last thing you want to do is chase down wiring gremlins!  Watch him show you how to lay out our 25 circuit Pro-Series harness and fit it to the car!

Posted by Painless Wiring 02/28/2020

Super Chevy Week to Wicked '55 - Painless Tri-Five Pro-Series - Coming Soon!

Super Chevy got their hands on the upcoming new Tri-Five Pro-Series wiring harness for their Week to Wicked 1955 Chevy!  The Pro-Series gives you the connectors you need, but comes open ended allowing you to custom route and fit the harness to your build!  Keep an eye out, our new Pro-Series 1955, 1956, and 1957 Chevy wiring harness is releasing soon!

Posted by Painless Wiring 10/23/2019

The "Forgotten" 1965 Mustang gets wired up the Painless Way!

Watch Mike with ClassicMustangs429 get his awesome patina'd '65 Ford Mustang wired up with our direct fit mustang wiring harness and ready for the Hot Rod Power Tour!  Mike's '65 had sat for 44 years when he started his "revival series" covering his journey bringing this awesome fastback back to life!

Posted by Painless Performance 10/07/2019

Hoonigan Project Squarebody - Zac gives his C10 the Painless wiring treatment!

Zac has been transforming his square from a tired old truck to a modern high power muscle truck!  Big cube LS power, built 4L80, Vintage Air, modern gauges, and the new Painless chassis harness for '73-'87 trucks will help modernize this C10!

Posted by Painless Wiring 08/12/2019

CJ Pony Parts talks Painless Wiring

Bill from CJ Pony Parts explains various wiring kits that Painless Performance Products offer to try helping you decide what your build needs.


Posted by Painless Performance 05/02/2019