Supported vehicles › GMC › Sierra

GMC · Cars & LCV

GMC Sierra tune files, remaps & software solutions

14 engines · 2007–2019 · 8 ECU/TCU types · files for Autotuner, KESS3, Flex, Dimsport DFOX / New Genius, PCMflash, MMCFlash, BitBox and more

Custom files for the GMC Sierra built in WinOLS from your own read — not a generic file pulled from a database. Send the read from your tool and Josh builds the calibration for your exact software version, usually back within 10–20 minutes during file-service hours (9am–9pm Mon–Sat AEST), and supports it afterwards. Typical Stage 1 figures are shown per engine below and confirmed per calibration.

WhatsApp 0466 659 997
Check availability at tacfiles.com

GMC Sierra 2.7 Ecoboost petrol

Years2017
Stock power310 hp
Stock torque473 Nm
ECU / TCU types1
Stage 1 — typical+15% power / +20% torque → ~355 hp / 570 Nm

Controllers and read methods

  • Bosch MG1CS018 TC298 AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCHDATALOGSOBD

What we build for this engine

  • Stage 1 and Stage 2 calibrations built from your read
  • Pops and bangs, launch and rev-limit changes where the platform allows
  • Catalyst, flap and DTC work
  • WinOLS map packs and DAMOS where we hold our own definitions

GMC Sierra 3.0 Duramax (LM2) diesel

Years2019
Stock power277 hp
Stock torque624 Nm
ECU / TCU types1
Stage 1 — typical+20% power / +28% torque → ~330 hp / 800 Nm

Controllers and read methods

  • Bosch T93 TCU SPC58E AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCHBENCH-PATCH

What we build for this engine

  • Stage 1 and Stage 2 calibrations built from your read
  • Towing and economy files
  • DPF, EGR and AdBlue software solutions, DTC work
  • TCU shift-point, lock-up and torque-management tuning matched to the engine file
  • WinOLS map packs and DAMOS where we hold our own definitions

GMC Sierra 4.3 LV1/LV3 petrol

ECU / TCU types1
Stage 1 — typical+5% power / +5% torque

Controllers and read methods

  • ACDelco E92 AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxOBD

What we build for this engine

  • Stage 1 and Stage 2 calibrations built from your read
  • Pops and bangs, launch and rev-limit changes where the platform allows
  • Catalyst, flap and DTC work
  • WinOLS map packs and DAMOS where we hold our own definitions

GMC Sierra 4.3i V6 petrol

Years2014
Stock power285 hp
Stock torque413 Nm
ECU / TCU types3
Stage 1 — typical+5% power / +5% torque → ~300 hp / 435 Nm

Controllers and read methods

  • Delco E92 MPC5674F AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCHOBD
  • Delco T87 TCU SPC564A80 AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCH
  • Delco T87A TCU SPC564A80 AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCH

What we build for this engine

  • Stage 1 and Stage 2 calibrations built from your read
  • Pops and bangs, launch and rev-limit changes where the platform allows
  • Catalyst, flap and DTC work
  • TCU shift-point, lock-up and torque-management tuning matched to the engine file
  • WinOLS map packs and DAMOS where we hold our own definitions

GMC Sierra 5.3 L83 petrol

ECU / TCU types1
Stage 1 — typical+5% power / +5% torque

Controllers and read methods

  • ACDelco E92 AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxOBD

What we build for this engine

  • Stage 1 and Stage 2 calibrations built from your read
  • Pops and bangs, launch and rev-limit changes where the platform allows
  • Catalyst, flap and DTC work
  • WinOLS map packs and DAMOS where we hold our own definitions

GMC Sierra 5.3i V8 petrol

Years2014
Stock power355 hp
Stock torque519 Nm
ECU / TCU types2
Stage 1 — typical+5% power / +5% torque → ~375 hp / 545 Nm

Controllers and read methods

  • Delco E92 MPC5674F AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCHOBD
  • Delco T87 TCU SPC564A80 AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCH

What we build for this engine

  • Stage 1 and Stage 2 calibrations built from your read
  • Pops and bangs, launch and rev-limit changes where the platform allows
  • Catalyst, flap and DTC work
  • TCU shift-point, lock-up and torque-management tuning matched to the engine file
  • WinOLS map packs and DAMOS where we hold our own definitions

GMC Sierra 5.3i V8 (L84) petrol

Years2019
Stock power355 hp
Stock torque519 Nm
ECU / TCU types1
Stage 1 — typical+5% power / +5% torque → ~375 hp / 545 Nm

Controllers and read methods

  • Bosch T93 TCU SPC58E AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCHBENCH-PATCH

What we build for this engine

  • Stage 1 and Stage 2 calibrations built from your read
  • Pops and bangs, launch and rev-limit changes where the platform allows
  • Catalyst, flap and DTC work
  • TCU shift-point, lock-up and torque-management tuning matched to the engine file
  • WinOLS map packs and DAMOS where we hold our own definitions

GMC Sierra 6.2 L86 petrol

ECU / TCU types1
Stage 1 — typical+5% power / +5% torque

Controllers and read methods

  • ACDelco E92 AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxOBD

What we build for this engine

  • Stage 1 and Stage 2 calibrations built from your read
  • Pops and bangs, launch and rev-limit changes where the platform allows
  • Catalyst, flap and DTC work
  • WinOLS map packs and DAMOS where we hold our own definitions

GMC Sierra 6.2 V8 petrol

Years2017
Stock power420 hp
Stock torque623 Nm
ECU / TCU types3
Stage 1 — typical+5% power / +5% torque → ~440 hp / 655 Nm

Controllers and read methods

  • Delco E38 MPC561 AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCHOBD
  • Delco E92 MPC5674F AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCHOBD
  • Delco T87 TCU SPC564A80 AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCH

What we build for this engine

  • Stage 1 and Stage 2 calibrations built from your read
  • Pops and bangs, launch and rev-limit changes where the platform allows
  • Catalyst, flap and DTC work
  • TCU shift-point, lock-up and torque-management tuning matched to the engine file
  • WinOLS map packs and DAMOS where we hold our own definitions

GMC Sierra 6.2i V8 (L87) petrol

Years2019
Stock power420 hp
Stock torque624 Nm
ECU / TCU types1
Stage 1 — typical+5% power / +5% torque → ~440 hp / 655 Nm

Controllers and read methods

  • Bosch T93 TCU SPC58E AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCHBENCH-PATCH

What we build for this engine

  • Stage 1 and Stage 2 calibrations built from your read
  • Pops and bangs, launch and rev-limit changes where the platform allows
  • Catalyst, flap and DTC work
  • TCU shift-point, lock-up and torque-management tuning matched to the engine file
  • WinOLS map packs and DAMOS where we hold our own definitions

GMC Sierra 6.2L V8 petrol

Years2014
Stock power426 hp
Stock torque624 Nm
ECU / TCU types2
Stage 1 — typical+5% power / +5% torque → ~445 hp / 655 Nm

Controllers and read methods

  • Delco E92 MPC5674F AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCHOBD
  • Delco T87 TCU SPC564A80 AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCH

What we build for this engine

  • Stage 1 and Stage 2 calibrations built from your read
  • Pops and bangs, launch and rev-limit changes where the platform allows
  • Catalyst, flap and DTC work
  • TCU shift-point, lock-up and torque-management tuning matched to the engine file
  • WinOLS map packs and DAMOS where we hold our own definitions

GMC Sierra 6.6 Duramax diesel

Years2007–2014
Stock power397 hp
Stock torque1037 Nm
ECU / TCU types1
Stage 1 — typical+20% power / +28% torque → ~475 hp / 1325 Nm

Controllers and read methods

  • Bosch EDC17CP18 TC1796 AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCH (BETA)BOOT

What we build for this engine

  • Stage 1 and Stage 2 calibrations built from your read
  • Towing and economy files
  • DPF, EGR and AdBlue software solutions, DTC work
  • WinOLS map packs and DAMOS where we hold our own definitions

GMC Sierra 6.6 Duramax (L5P) diesel

Years2017–2019
Stock power445 hp
Stock torque1234 Nm
ECU / TCU types3
Stage 1 — typical+20% power / +28% torque → ~535 hp / 1580 Nm

Controllers and read methods

  • Bosch T93 TCU SPC58E AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCHBENCH-PATCH
  • Delco T87 TCU SPC564A80 AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCH
  • Delco T87A TCU SPC564A80 AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCH

What we build for this engine

  • Stage 1 and Stage 2 calibrations built from your read
  • Towing and economy files
  • DPF, EGR and AdBlue software solutions, DTC work
  • TCU shift-point, lock-up and torque-management tuning matched to the engine file
  • WinOLS map packs and DAMOS where we hold our own definitions

GMC Sierra 6.6i V8 (L8T) petrol

Years2019
Stock power401 hp
Stock torque629 Nm
ECU / TCU types1
Stage 1 — typical+5% power / +5% torque → ~420 hp / 660 Nm

Controllers and read methods

  • Bosch T93 TCU SPC58E AutotunerKESS3FlexDFOXPCMflashbFlashBitBoxBENCHBENCH-PATCH

What we build for this engine

  • Stage 1 and Stage 2 calibrations built from your read
  • Pops and bangs, launch and rev-limit changes where the platform allows
  • Catalyst, flap and DTC work
  • TCU shift-point, lock-up and torque-management tuning matched to the engine file
  • WinOLS map packs and DAMOS where we hold our own definitions

GMC Sierra FAQ

Do you have a tune file for the GMC Sierra?

Yes — for every engine and ECU listed above. Files are built from your own read in WinOLS for your exact software version, not supplied from a generic database.

How do I get a GMC Sierra file?

WhatsApp the read to 0466 659 997 with the engine, ECU, your tool and what you want, or upload it at tacfiles.com for an automated return where a matching project exists.

What gains will a GMC Sierra Stage 1 give?

Typical Stage 1 figures are shown on each engine card above — measured on our dyno where marked, otherwise the typical gain for that engine class. Final numbers depend on the calibration and hardware, so we confirm per file. Reliability comes first — files stay inside what the engine, injectors and cooling handle comfortably.

Related

All GMC modelsAll supported vehiclesSupported ECU typesFor tuners & workshopsTune file service

Send your GMC Sierra read

WhatsApp 0466 659 997 with the engine, ECU, your tool and what you want. Hand-built files typically return in 10–20 minutes during file-service hours (9am–9pm Mon–Sat AEST).

WhatsApp 0466 659 997
Check availability at tacfiles.com

Vehicle, ECU and read-method data compiled from the published compatibility lists of the flashing tools we work with (files are returned for Autotuner, KESS3, Flex, DFOX, PCMflash, bFlash, BitBox and more). Stock figures are manufacturer-published values as listed by those tools and may vary by market. All tuning files are intended for off-road, motorsport, agricultural or commercial use only; it is the responsibility of the vehicle owner to ensure compliance with local regulations.