ECM Modification

HPT GM E99 Global B ECM Upgrade (*VIN & Original ECM Required*)

HPT GM E90 Global B ECM Upgrade (*VIN & Original ECM Required*)

HPT Polaris MG1 ECM Upgrade (*VIN & Original ECM & H-002-08 Cable Required*)

HPT Ford Power Stroke MD1 ECM Service

HP Tuners E93 ECM 20-23 GM 6.6L

HPT E41 ECM Upgrade Kit(L5P)

Get your 2017+ Chevrolet Silverado and GMC Sierra 2500/3500 6.6L Duramax ready for tuning with HP Tuners E41 ECM Upgrade service. Upgrade your original E41 ECM for tuning and diagnostics via this send-in, one-time service. Simply send HP Tuners your...

Get your 2017+ Chevrolet Silverado and GMC Sierra 2500/3500 6.6L Duramax ready for tuning with HP Tuners E41 ECM Exchange service. Exchange your original E41 ECM for one that's already upgraded for tuning and diagnostics with HP Tuners' hardware and...

Get your 2017+ Chevrolet Silverado and GMC Sierra 2500/3500 6.6L Duramax ready for tuning by purchasing a brand-new E41 ECM from HP Tuners that's already upgraded for tuning and diagnostics.