Peakside Performance is a Canadian-based company that specializes in repairing and providing custom tuning for diesel vehicles, resulting in better fuel economy and increased performance!
Peakside Performance
2003-2010 Powerstroke Peakside SCT Custom Tune File (PSP-03-10-PWR-SCT)
Part Number: PEAK-PS60-SCT-1FIn StockRegular priceFrom $200.00 CADUnit price
Peakside Performance
Peakside EZ Lynk Support Packages
Part Number: PEAK-CUM67-EZLNK-LTDRegular priceFrom $774.00 CADUnit price
Peakside Performance
2003-2010 6.0L Powerstroke Peakside HP Tuners Custom Tune Files (PSP-03-10-PWR-HP)
Part Number: PEAK-PS60-HPTUN-1FIn StockRegular priceFrom $200.00 CADUnit price-
Peakside Performance
2017-2023 Duramax Peakside EZ Lynk 4-Week Support Package (PEAK-L5P-EZLNK-LTD)
Part Number: PEAK-L5P-EZLNK-LTDIn StockRegular price $1,250.00 CADUnit price 
Peakside Performance
Part Number: PEAK-CUM59-HPTUN-0305In StockRegular priceFrom $315.00 CADUnit price
Peakside Performance
Part Number: PEAK-LML-EFI-5FIn StockRegular priceFrom $310.49 CADUnit price-
Peakside Performance
2017-2023 Duramax Peakside HP Tuners Single Tune File (PEAK-L5P-HPTUN-1723-SGL)
Part Number: PEAK-L5P-HPTUN-1723-SGLIn StockRegular price $1,199.99 CADUnit price -
Peakside Performance
2020-2022 Powerstroke Peakside EZ Lynk 4-Week Support Package (PEAK-PS67-EZLNK-2022-LTD)
Part Number: PEAK-PS67-EZLNK-2022-LTDRegular price $1,600.00 CADUnit price 
Peakside Performance
2003-2010 Powerstroke Peakside HP Tuners FICM Custom Tune File (PEAK-PS60-FICM-1F)
Part Number: PEAK-PS60-FICM-1FIn StockRegular price $250.00 CADUnit price-
Peakside Performance
2023-2026 Powerstroke Peakside EZ Lynk 4-Week Support Package (PEAK-PS67-EZLNK-2326-LTD)
Part Number: PEAK-PS67-EZLNK-2326-LTDIn StockRegular price $2,400.00 CADUnit price -
Peakside Performance
2001-2010 Duramax Peakside EFI Live DSP5 SOTF Tune Files (PEAK-DUR-EFI-0110-DSP5)
Part Number: PEAK-DUR-EFI-0110-DSP5In StockRegular price $357.07 CADUnit price -
Peakside Performance
2013-2021 Cummins Peakside EZ Lynk 4-Week Support Package (PEAK-CUM67-EZLNK-LTD)
Part Number: PEAK-CUM67-EZLNK-LTDIn StockRegular price $860.00 CADUnit price 
Peakside Performance
2008-2010 Powerstroke Peakside SCT Custom Tune Files (PSP-08-10-PWR-SCT)
Part Number: PEAK-PS64-SCT-1FIn StockRegular priceFrom $300.00 CADUnit price-
Peakside Performance
2017-2023 Duramax Peakside EZ Lynk Lifetime Support Package (PEAK-L5P-EZLNK-UNLTD)
Part Number: PEAK-L5P-EZLNK-UNLTDIn StockRegular price $1,675.00 CADUnit price 
Peakside Performance
Peakside Performance SCT Tune File Revision
Part Number: PEAK-UNI-SCT-REVRegular price $150.00 CADUnit price-
Peakside Performance
2023-2026 Powerstroke Single Flash EZ-Lynk 4-Week Support Package (PEAK-PS67-EZLNK-0HP-LTD)
Part Number: PEAK-PS67-EZLNK-0HP-LTDRegular price $1,500.00 CADUnit price 
Peakside Performance
Powerstroke Peakside SCT Custom Tune Files
Part Number: PEAK-PS73-SCT-4FIn StockRegular priceFrom $175.00 CADUnit price-
Peakside Performance
2001-2010 Duramax Peakside EFI Live Single Level Tune File (PEAK-DUR-EFI-0110-SGL)
Part Number: PEAK-DUR-EFI-0110-SGLIn StockRegular price $310.49 CADUnit price -
Peakside Performance
2023-2026 Powerstroke Peakside EZ Lynk Lifetime Support Package (PEAK-PS67-EZLNK-2326-UNLTD)
Part Number: PEAK-PS67-EZLNK-2326-UNLTDRegular price $2,900.00 CADUnit price -
Peakside Performance
2017-2023 Duramax Peakside HP Tuners SOTF Tune File (PEAK-L5P-HPTUN-1723-SOTF)
Part Number: PEAK-L5P-HPTUN-1723-SOTFIn StockRegular price $1,599.99 CADUnit price -
Peakside Performance
2024-2026 Duramax Peakside HP Tuners RTD4 Custom Tune Files (PEAK-L5P-HPTUN-SGL)
Part Number: PEAK-L5P-HPTUN-SGLIn StockRegular price $2,150.00 CADUnit price 
Peakside Performance
2017-2023 Duramax Peakside EZ-Lynk TCM Tuning Add-On
Part Number: PEAK-L5P-EZLNK-TCMRegular price $399.00 CADUnit price-
Peakside Performance
2020-2022 Powerstroke Peakside EZ Lynk Lifetime Support Package (PEAK-PS67-EZLNK-2022-UNLTD)
Part Number: PEAK-PS67-EZLNK-2022-UNLTDRegular price $2,100.00 CADUnit price -
Peakside Performance
2020-2022 LM2 Duramax Peakside EZ Lynk 4-Week Support Package (PEAK-LM2-EZLNK-LTD)
Part Number: PEAK-LM2-EZLNK-LTDRegular price $1,250.00 CADUnit price -
Peakside Performance
2013-2021 Cummins Peakside EZ Lynk Lifetime Support Package (PEAK-CUM67-EZLNK-UNLTD)
Part Number: PEAK-CUM67-EZLNK-UNLTDIn StockRegular price $1,150.00 CADUnit price -
Peakside Performance
2008-2010 6.4L Powerstroke Peakside EZ Lynk 4-Week Support Package (PEAK-PS64-EZLNK-LTD)
Part Number: PEAK-PS64-EZLNK-LTDIn StockRegular price $774.00 CADUnit price -
Peakside Performance
1995-2003 7.3L Powerstroke Peakside SCT Single Custom Tune File (PEAK-PS73-SCT-1F)
Part Number: PEAK-PS73-SCT-1FIn StockRegular price $175.00 CADUnit price -
Peakside Performance
2011-2016 LML Duramax Peakside EFI Live Single Tune File (PEAK-LML-EFI-SGL)
Part Number: PEAK-LML-EFI-SGLIn StockRegular price $499.00 CADUnit price -
Peakside Performance
2007.5-2024 Cummins 68RFE Peakside EFI Live TCM Tuning Upgrade (PEAK-CUM67-EFI-TCM)
Part Number: PEAK-CUM67-EFI-TCMIn StockRegular price $175.00 CADUnit price -
Peakside Performance
2017-2026 Duramax Peakside HP Tuners TCM Tuning (PEAK-DUR-HPTUN-TCM)
Part Number: PEAK-DUR-HPTUN-TCMIn StockRegular price $399.99 CADUnit price 
Peakside Performance
2017-2023 L5P Duramax Peakside EZ Lynk 4-Week to Lifetime Support Package Upgrade
Part Number: PEAK-L5P-EZLNK-UPGRegular price $425.00 CADUnit price-
Peakside Performance
2019-2024 Cummins Peakside EFI Live Single Custom Tune Files (PEAK-CUM67-EFI-1924-SGL)
Part Number: PEAK-CUM67-EFI-1924-SGLIn StockRegular price $515.00 CADUnit price -
Peakside Performance
2003–2005 5.9L Cummins Peakside HP Tuners Tune Files (PEAK-CUM59-HPTUN-0305)
Part Number: PEAK-CUM59-HPTUN-0305In StockRegular price $315.00 CADUnit price -
Peakside Performance
2011-2016 LML Duramax Peakside EFI Live SOTF Tune File (PEAK-LML-EFI-SOTF)
Part Number: PEAK-LML-EFI-SOTFIn StockRegular price $770.50 CADUnit price -
Peakside Performance
2013-2018 Cummins Peakside EFI Live Single Custom Tune Files (PEAK-CUM67-EFI-1318-SGL)
Part Number: PEAK-CUM67-EFI-1318-SGLIn StockRegular price $515.00 CADUnit price -
Peakside Performance
2006-2007 5.9L Cummins Peakside EFI Live SOTF Tune File (PEAK-CUM59-EFI-SOTF)
Part Number: PEAK-CUM59-EFI-SOTFIn StockRegular price $565.00 CADUnit price 
Peakside Performance
1995-2003 7.3L Powerstroke Peakside SCT Two Custom Tune Files (PEAK-PS73-SCT-2F)
Part Number: PEAK-PS73-SCT-2FIn StockRegular price $225.00 CADUnit price-
Peakside Performance
2013-2018 Cummins Peakside EFI Live SOTF Custom Tune Files (PEAK-CUM67-EFI-1318-SOTF)
Part Number: PEAK-CUM67-EFI-1318-SOTFIn StockRegular price $725.00 CADUnit price -
Peakside Performance
2008-2010 6.4L Powerstroke Peakside EZ Lynk Lifetime Support Package (PEAK-PS64-EZLNK-UNLTD)
Part Number: PEAK-PS64-EZLNK-UNLTDIn StockRegular price $1,035.00 CADUnit price -
Peakside Performance
2014-2019 RAM Eco Diesel Peakside HP Tuners Custom Tuning (PEAK-ECODSL-HPTUN)
Part Number: PEAK-ECODSL-HPTUNIn StockRegular price $1,550.00 CADUnit price 
Peakside Performance
Part Number: PEAK-PS67-EZLNK-UPG-2022Regular price $500.00 CADUnit price-
Peakside Performance
2006-2007 5.9L Cummins Peakside EFI Live Single Tune File (PEAK-CUM59-EFI-SGL)
Part Number: PEAK-CUM59-EFI-SGLIn StockRegular price $350.00 CADUnit price -
Peakside Performance
2019-2024 Cummins Peakside EFI Live SOTF Custom Tune Files (PEAK-CUM67-EFI-1924-SOTF)
Part Number: PEAK-CUM67-EFI-1924-SOTFIn StockRegular price $725.00 CADUnit price -
Peakside Performance
2006-2009 Cummins Peakside EFI Live Single Custom Tune Files (PEAK-CUM67-EFI-0709-SGL)
Part Number: PEAK-CUM67-EFI-0709-SGLIn StockRegular price $350.00 CADUnit price -
Peakside Performance
2018-2020 3.0L Powerstroke Peakside EZ Lynk Lifetime Support Package (PEAK-PS30-EZLNK-UNLTD)
Part Number: PEAK-PS30-EZLNK-UNLTDIn StockRegular price $1,150.00 CADUnit price -
Peakside Performance
1995-2003 7.3L Powerstroke Peakside SCT Four Custom Tune Files (PEAK-PS73-SCT-4F)
Part Number: PEAK-PS73-SCT-4FIn StockRegular price $325.00 CADUnit price -
Peakside Performance
2020-2022.5 Duramax Peakside HP Tuners Custom Tune Files (PSP-20-22.5-DMAX-HP)
Part Number: PEAK-LM2-HPTUN-SGLIn StockRegular priceFrom $1,200.00 CADUnit price -
Peakside Performance
2010-2012 Cummins Peakside EFI Live SOTF Custom Tune Files (PEAK-CUM67-EFI-1012-SOTF)
Part Number: PEAK-CUM67-EFI-1012-SOTFIn StockRegular price $725.00 CADUnit price -
Peakside Performance
2010-2012 Cummins Peakside EFI Live Single Custom Tune Files (PEAK-CUM67-EFI-1012-SGL)
Part Number: PEAK-CUM67-EFI-1012-SGLIn StockRegular price $515.00 CADUnit price -
Peakside Performance
2007-2009 Cummins Peakside EFI Live SOTF Custom Tune Files (PEAK-CUM67-EFI-0709-SOTF)
Part Number: PEAK-CUM67-EFI-0709-SOTFIn StockRegular price $565.00 CADUnit price
