GDP MPVI4 CHANGE from "Multi-tune" TO "SOTF" or from "SOTF" TO "Multi-tune" or from "Multi-tune/SOTF" TO "Single tune" (17-23 GM Duramax L5P 2500/3500) c_dodge Modifications to increase power require

Modifications to increase power require swapping the ECM to a 2020-2021 model

Backed by GDP’s in-house team

Gold-plated pins — maximum conductivity for clean signal and power transmission

0L engines are expertly crafted to unlock your truck's full potential

Your E46 ECM core must be fully functional with no physical or internal damage

GDP MPVI4 CHANGE from "Multi-tune" TO "SOTF" or from "SOTF" TO "Multi-tune" or from "Multi-tune/SOTF" TO "Single tune" (17-23 GM Duramax L5P 2500/3500) c_dodge Modifications to increase power requireCHANGE from "Multi tune" TO "SOTF" or from "SOTF" TO "Multi tune" or from "Multi tune SOTF" TO "Single tune" HP Tuners MPVI4 interface (sold separately)