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    Open Monday - Friday 9A-4:30P EST

    We're closed on major holidays.

    PRI Booth 2435 (December 7th-8th)

  • Harness order lead time is estimated to be 7-9 weeks from date of purchase.

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

    Speartech will be attending PRI December 7th and December 8th @ Booth 2435

    We will be out of office during the 7th and 8th of December.

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LS and LT Retrofit Specialists
Call to order today

LT1/L83/L86 with 8L90 Harness Package *2015-2016*
LT1/L83/L86 with 8L90 Harness Package *2015-2016* - Image 1 of 0
LT1/L83/L86 with 8L90 Harness Package *2015-2016* - Image 2 of 0
LT1/L83/L86 with 8L90 Harness Package *2015-2016* - Image 1 of 0
LT1/L83/L86 with 8L90 Harness Package *2015-2016* - Image 2 of 0
LT1/L83/L86 with 8L90 Harness Package *2015-2016* - Image 1 of 0
LT1/L83/L86 with 8L90 Harness Package *2015-2016* - Image 2 of 0

LT1/L83/L86 with 8L90 Harness Package *2015-2016*

$0.00
Choose your options:
Engine:
Fuel System:
Only applies to customers using a Camaro tune in the computers
Sending in ECM for reprogramming?(required):
Sending in TCM for reprogramming?(required):
Add MAF Sensor?:
Add O2 Sensors?:
Add NSS?:
Gear Ratio/Tire(required):
Cruise Control(optional):
Emissions Wiring(required):
Front End Drive(required):
Examples are Holley, Wegner, CVF Racing, Drive Junky, etc.
Product Code: LT1-8L-HP
Usually Ships in 6 to 8 Weeks
Our harness package includes the standalone wiring harness, programmed ECM, programmed TCM, and ETC pedal.

For 2015-2016 engines only with a 4-wire fuel rail pressure sensor.