LSX premium engine wiring harness for Emtron KV8 ECU
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LSX Premium Engine Wiring Harness

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3.00 LBS

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Harness the full potential of your LSX

The Emtron LSX harness is a true motorsport quality wiring harness for the LS swap enthusiast.  If you are looking to control your GM LSX in your race car, drag car, hot hod, pro touring car or kit car this harness coupled with an Emtron ECU will give you uncompromising flexibility.  

Dual DBW throttle, dual wideband O2, dedicated boost solenoid, dedicated inputs (fuel/oil), CAN expansion, and more!


  • Tefzel wire with Raychem heat shrink construction
  • Properly shielded circuits
  • Handmade, and tested with proper Q.C. electronics
  • Prewired for dual DBW support
  • Dedicated dual bank wideband oxygen sensors
  • Dedicated fuel pressure sensor input
  • Dedicated boost solenoid
  • Dedicated CAN expansion (inside and outside) featuring plug in functionality for Emtron ELC, Emtron EIC, and Emtron ETC
  • Dedicated Logging CAN expansion to connect to your favorite display/dash/logger system
  • Convertible to SL series support for smaller packaging

This harness pictured was constructed by industry leading wiring specialist 

Emtron ECU features:

  • Emtron fuel model (fuel pressure compensation, flex fuel support,throttle mass flow calculation, and more)
  • Emtron motorsport function support (launch control, traction control, staged progressive nitrous, and more)
  • Engine protection features (oil pressure, fuel pressure, temperatures, etc)
  • Calibration Slot control
  • Short term and long term feedback functions for oxygen sensors and individual cylinder knock detection
  • 500Hz logging

 All harnesses are built to order and can be customized for the application.  Please contact ACE for more details.


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Returns Policy
If you are not satisfied with any purchase made with Ace Performance, notify us within thirty-six (36) hours of receiving the package. Items may only be returned if they differ from what you ordered (ie. we shipped the wrong part to you) or you suspect there may be a defect with an item. Fitment issues (ie. you ordered the wrong part) are not a valid reason to return an item, and no refund requests due to fitment issues will be honored. To return an item incorrectly shipped to you, or that you believe to be defective, you must obtain a Return Merchandise Authorization Number (RMA #). The goods must be returned within ten (10) days in the same condition and in the original packaging. If the merchandise is damaged, or not in the original packaging, or no valid RMA # appears on the outside packaging, no refund will be forthcoming and you own the original purchase. The customer will be responsible for all shipping charges.

Electronic items are subject to engineering inspection prior to a refund being issued. All electronic items are carefully tested and inspected prior to sale. All items sold by Ace Performance are new unless otherwise specified.

If you believe a product you receive from Ace Performance has any defect, please contact us immediately. In the unlikely event that any issue should arise with your purchase, we are very motivated to locate and resolve the cause of the problem. If a manufacturing problem has occurred, we will investigate the part once it is returned to us, and then check with the manufacturer. If a defect is determined, the defective part will be replaced at no additional cost to you, or if you prefer, we will provide a full refund.

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