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  • Standard order lead time for Standalone Harnesses:

    Gen V - 4-5 weeks

    Gen 3 or Gen 4 -1-2 weeks (Several LS3 kits in stock!)

    Need it sooner? Give us a call to discuss expediting. Limited slots available.

    All other items typically ship within 3-5 business days unless specified otherwise.

LS and LT Retrofit Specialists
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L84 with 10L80E Harness Package *Global A*
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L84 with 10L80E Harness Package *Global A*

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Choose your options:
Add MAF Sensor?:
Add NSS?:
Neutral Safety Switch for 10 speed automatics to prevent the vehicle from starting in gear.
Gear Ratio/Tire(required):
Emissions Wiring(required):
Front End Drive(required):
Examples are Holley, Wegner, CVF Racing, Drive Junky, etc.
Year of Engine:
Product Code: ST-L84-10L-Pkg
See top for lead time
Quantity in Stock: (Out of Stock)
Our NEWEST harness package includes the standalone wiring harness, programmed E90 ECM, programmed T93 TCM, compatible front o2's (pair), firewall grommet, and ETC pedal.
2019-2021.5 *GLOBAL A Vehicles only* equipped with the L84 engine (5.3L).
Transmissions and engines must be global A variants with non ETRS transmissions.
Return style fuel setup only (340 LPH fuel pump required with adjustable regulator set to 72 PSI constant)
-Returnless fuel setup not available on the E90 ECM's.

Please give us a call for additional details!
All online orders are for our default harness length. Our default harness length is approximately 42" from the passenger side rear head and mounts the modules under-the-dash. If you need a custom layout to mount the computer elsewhere, call to order.
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