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  • 17-Digit Vehicle Identification Number

    The VIN must be acquired from the VIN plaque on the dash, or the certification label on the B-pillar. (Not an insurance card or other document.)

  • For vehicles with aftermarket wheels and tires. Actual Speed (per GPS device) when Speedometer Indicates 60mph

    Requests for raising of speed limiter require photographic evidence of speed rating on tire sidewall, submitted via Support Request.

    GPS reading when gauge cluster reads 60mph:
  • Choose Single File...
    Or drag and drop your file here

    We require photographic evidence showing the speed rating on the tire sidewall, as installed on the vehicle. The speed limiter will be raised in the calibration to match the speed rating of the tire.

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  • For product related questions, please contact support prior to purchasing: Contact Us

About 2014--2018+ Chevrolet Silverado - 5.3L - Elite

TRIFECTA 2014--2018+ Chevrolet Silverado and GMC Sierra
Gen V V8, 5.3L, 6.2L, 2WD, 4WD, AWD


6 speed automatic and 8 speed automatic


Detailed power gains (measured at the wheels, dynojet chassis dyno)


5.3L gains: up to +28 ft-lbs torque, +20 horsepower (peak gains of up to 24 ft-lbs torque, +19 horsepower)
6.2L gains: up to +45 ft-lbs torque, +22 horsepower (peak gains of up to 31 ft-lbs torque, +16 horsepower)


Improved power assists with towing and support other modifications (larger wheels/tires)
Added "sport" mode gives the truck a sporty feel and improves responsiveness


TRIFECTA presents: Chevrolet Silverado / GMC Sierra (Gen V V8, 5.3L, 6.2L) MY2014--2018+ Powertrain Calibration Reprogramming (flash tune)


TRIFECTA is pleased to announce the immediate availability of the 2014--2018+ Chevrolet Silverado and GMC Sierra vehicle software recalibration (reflash) for vehicles utilizing either the 5.3L V8 or the 6.2L V8 with either the 8 speed automatic transmission (8L90 / RPO:M5U) or the 6 speed automatic transmission (6L80 / RPO:MYC). Two wheel drive (2WD), four wheel drive (4WD) and all wheel drive (AWD) variants are supported. Specific gains over factory calibration are up to (uncorrected) 45lb-ft of torque and 19 horsepower with no vehicle modifications beyond the updated software calibration.


TRIFECTA's 2014--2018+ full size truck recalibration is complimented by a fully developed 6-speed or 8-speed (depending on application) automatic transmission calibration to support the increased power delivery profile and to offer dramatically improved driving characteristics from everyday driving maneuvers to towing and hauling. The complete powertrain calibration also includes ESC (Stabilitrak) and, for four/all wheel drive (4WD/AWD) equipped models, TCCM (transfer case control module) program enhancements.


All 2014--2018+ full size truck calibrations also include TRIFECTA's exclusive "tri-mode" DSVM (driver selectable vehicle modes). Choose between TRIFECTA Sport mode, tow/haul mode, or ECO mode, on the fly using existing vehicle controls (see full details below).


Specifications of the TRIFECTA Performance 2014--2018+ full size truck ECM software reprogramming:


-Fuel economy is improved (up to 2.4MPG observed), dependent on fuel grade and driving conditions
-Retains all GM OE diagnostics and ECM functionality
-Retains all OE error code reporting and functionality
-Emissions readiness checks are present; emissions compliant
-Maintains functionality of ABS and TC systems
-Knock detection mechanisms and OE engine knock detection sensitivity is retained
-Return to stock functionality included with flash loader
-Full flex-fuel / E85 features retained
-Tested on all available grades of fuel (87, 89, 91, 92, and 93 octane) and ethanol blends from 10% to 85%

TRIFECTA Performance Active Fuel Management (PAFM) (Advantage+ or Elite package)


The L83 offers V8/V4 mode. GM has succeeded in making V8/V4 transitions (AFM, or Active Fuel Management as GM calls it) extremely smooth, such that in most cases they can't be noticed. However, some customers may have exhaust or other modifications that cause the truck to produce an undesirable exhaust note while in V4 mode. TRIFECTA exclusively offers three options with regard to adjusting AFM parameters with this product:

  • AFM available/active in all drive modes (default)
  • AFM disabled in Sport mode
  • AFM disabled entirely

Advantage+ and Elite customers may request AFM behavior changes when ordering their product.

Specifications of the TRIFECTA Performance 2014--2018+ full size truck 6-Speed / 8-Speed automatic transmission TCM calibration software reprogramming:


-Added vehicle drive modes (TF Sport, tow/haul, and stock)
-Improved shift times in adverse shift patterns
-Improved shift logic - shifts are progressive and purposeful
-Does not shorten transmission life or increase cooling requirements
-Retains all OE diagnostics and TCM functionality
-Retains all OE error code reporting and functionality


Supplementary Featureset of the TRIFECTA Performance 2014--2018+ full size truck powertrain calibration software reprogramming:


-TRIFECTA Interactive Driver Selectable Vehicle Mode (Select-a-Tune MKII):


-Cruise System Armed = ECO
-Cruise System Disarmed = Sport
-Tow/Haul = TRIFECTA Enhanced Tow/Haul Mode (Overrides Cruise System Selection)


-TRIFECTA ECO Mode: Up to 2.4 MPG improvement by dedicated TRIFECTA ECO mode prioritizing fuel economy in engine calibration profile and transmission shift strategy
-Alternative Driver Profiles layout included with individualized calibration
-TRIFECTA Octane Adaptive MKII featureset will bias for lower octane fuels (multi dimensional airflow knock and timing decay tables, not just high/low)
-Improved fuel economy while towing with alternative TOW/HAUL mode
Installation Notes:


-Estimated installation time of ~20 minutes
-Premium fuel is recommended for maximum power output, but not required


Additional information and availability:


- This powertrain calibration includes a TRIFECTA powertrain calibration file specific to your vehicle and includes a flash loader device
- Powertrain calibrations currently exist for North American vehicles only, with more regions to follow


The TRIFECTA Elite Calibration offers premium tier-1 support. With this product, customers can request specific calibration changes and support for third party hardware. Remote-tuning services are offered with this tier.

Shipping Options

Shipping options and prices may vary depending on the total value of your order. Your final shipping price will be determined at checkout.

Options shown are based on your estimated location.

  • $15.00 - Ground (United States) (1-5 days)
  • $40.00 - 2nd Business Day (M-F, No Sat/Sun Delivery, US Only) (2 business days)
  • $80.00 - Next Business Day (M-F, No Sat/Sun Delivery, US Only) (1 business day)
  • FREE - I already own an EZ Flash cable. (Cable must have TRIFECTA logo sticker)

Shipping Size

  • Size
    8.69 in × 5.44 in × 1.75 in
  • Weight
    1 lb


   1 of 2 members found this review helpful 1 / 2 members

This tune is worth the money. You can feel the power and acceralation. Your truck will become an brand new one. This is how GM should tune these trucks from the lot. Micheal and these guys are the best by far hands down no comp. I'm very hard to please. I promise you will have a smile on your face and enjoy driving this truck every time you put your foot on that gas.

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