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Painless Performance Products - celebrating 25 years

As the leading manufacturer of automotive electrical systems, fuel injection management systems, electrical components and diesel performance products serving the classic car and truck, off-road, diesel and racing markets.



Why Choose a Painless Harness?

Quality Harnesses


Number One Selling Harnesses For The Best Reason: Quality!

Our customers know that installing one of our harnesses is truly a painless experience. Install just one Painless chassis harness and you'll be a customer for life. Yes, you can buy a cheaper harness, but why would you? The time and effort that goes into building a project vehicle should not be jeopardized by using an inferior electrical system. All wires are not created equal.

When it comes to the safety of your vehicles electrical system, cutting corners when it comes to the wiring system is just not a good idea. With nearly a quarter century of experience and a quarter million harnesses on the road, Painless is the sensible solution to all your automotive wiring needs.


Open Quote

Painless Customer
Brad Gomillion

I had the pleasure of being one of the first to have access to the new Early Bronco harness. This harness completely exemplifies the company name...painless. Everything is labeled perfectly and lands out just right. Congratulations on a great product and you wont be disappointed!Close Quote


Introducing The All New Trail Rocker

Introducing the brand new Trail Rocker from Painless, allowing you to control up to eight accessories on your JK Jeep! The heart of this kit is enclosed in the waterproof housing that surrounds the power center with eight fuses and relays. Controlling it, are five prewired switches mounted in our custom dash panel for a clean factory installed look inside your Jeep.

Find more information click here 



Posted by Derek Love

Price Drop for Fuel Injection Harnesses

   Painless is happy to announce a price drop on its fuel injection engine harnesses. This new low price can be found 

from our LS series harnesses to our Ford 5.0L harness. The LS1 harness is now $574.99, the Gen III truck engine is $624.99, Ford 5.0L is $494.99, and many more. Extra length harnesses are also available for select kits for just $50.00 more.

  Painless also offers a FREE ECU re-flash service with any LS series harness purchased from us. This is a value of $200 that no other company offers. Send us your ECU or purchase one from us and we’ll have you on the road in no time!


Full List of Price Drops:

GM LS Series

60508    1999-02 GM LS-1 Harness Std. Length                                                             $574.99

60509    1999-02 GM LS-1 Harness Extra Length                                                           $624.99

60217    1999 & Up GM Gen III 4.8, 5.3 & 6.0L Harness Std. Length                                $624.99

60218    1999 & Up GM Gen III 4.8, 5.3 & 6.0L Harness Extra Length                              $674.99

60221    2003-06 GM Gen III 4.8, 5.3 & 6.0L Throttle by Wire Harness Std. Length           $899.99

60522    1997-04 GM LS-1 Throttle by Wire Harness Std. length                                      $624.99

60523    1997-04 GM LS-1 Throttle by Wire Harness Extra length                                    $674.99

60520    2005 GM LS-2 Harness Std. Length                                                                 $674.99

60524    2006-08 GM LS-2/3/7 Throttle by Wire Harness Std. Length                               $899.99

60526    2007-Up GM Gen IV 4.8-6.2L Harness (4L65E-4L85E) (Incl. DOD & VVT)           $949.99

GM Vortec

60212    1996-99 GM Vortec 5.0 & 5.7L V8 (CMFI) Harness Std. Length                          $724.99

60213    1996-99 GM Vortec 5.0 & 5.7L V8 (CMFI) Harness Extra Length                        $774.99


60608    1997-04 GM LS1 Integrated EFI/Chassis Harness Manual Throttle                      $1,399.99

60617    1999-05 GM Gen III 4.8, 5.3 & 6.0L EFI/Chassis Harness Manual Throttle           $1,399.99

Ford 5.0L

60510    1986-95 Ford 5.0L Harness Std. Length                                                             $494.99

60511    1986-95 Ford 5.0L Harness Extra Length                                                            $574.99


60502    1992-97 GM LT-1 Harness Std. Length                                                               $645.99

60505    1992-97 GM LT-1 Harness Extra Length                                                             $695.99




Posted by Derek Love


IPhone Contingency Connection


Not only are PowerBraid & ClassicBraid great for wires, but they also can be used around hoses, lines and other items throughout a build.

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