2007–2021 Peterbilt 325 ISB/B6.7 Cummins Delete Tuning

2007–2021 Peterbilt 325 Cummins ISB/B6.7 Delete Tuning

Restore power, reliability, and fuel efficiency in your Peterbilt 325 with custom delete tuning for the Cummins ISB 6.7L (later B6.7) engine. This tuning package eliminates factory emissions systems and is compatible with a wide range of ECMs and datalink tools including EFILive AutoCal V3, Nexiq USB Link, and Cummins Inline adapters.

✅ Supported Models:

• Peterbilt 325 (2007–2021)

• Cummins ISB 6.7L / B6.7

• ECMs:

  • CM2100 (2007–2009)

  • CM2150 (2010–2012)

  • CM2350A (2013–2021)

🚫 Emissions Systems Removed:

• DPF – Diesel Particulate Filter

• EGR – Exhaust Gas Recirculation

• SCR/DEF – Selective Catalytic Reduction / DEF system

• Associated regen logic and emission-related fault codes

🔧 Key Benefits:

• Increased horsepower and torque output

• Improved throttle response and driveability

• Better fuel economy and lower operating temps

• Eliminates limp mode, DEF issues, and frequent regens

• Fully custom tuning tailored to your usage needs (Tow, Economy, Daily, etc.)