2001-2016 Duramax Peakside EFI Live TCM Tuning

Note: This is an upgrade to your current tuning. Do not purchase this unless you already have EFI Live engine tuning installed on your truck.

Get the most out of the Allison behind your Duramax. Peakside Performance TCM tuning is a key upgrade for any modified 2001-2016 Duramax running EFI Live. The file recalibrates shift points and line pressure so the Allison 1000 shifts on time and stays in step with your engine tune. Higher line pressure puts more clamping force on the clutch packs, which raises holding capacity and helps keep slip and early clutch wear in check.

Part Number: PEAK-DUR-EFI-TCM

• Shift points recalibrated to match your engine tuning and power level.
• Increased line pressure for more clutch holding capacity.
• Helps prevent clutch slippage and premature clutch wear.
• Increases the driveability of your Allison.
• Pairs with the 2001-2010 Duramax Peakside EFI Live Single Level Tune File or the 2011-2016 LML Duramax Peakside EFI Live Single Tune File.

• A stock read of your TCM is required. Upload it at checkout so the file can be built for your transmission.
• Due to the sensitivity of flashing these modules, only CAL-FLASH the TCM unless directed otherwise. Refunds will not be given for module damage caused by incorrect flashing.
• This is the TCM file only. Engine (ECM) tuning is sold separately.

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