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 software.
HP Tuners ECM Exchange - GM E41 12683624 / L5P
HP Tuners L5P - ECM Exchange Serivce
HP Tuners Engine Cntrl Module
Engine Control Module (ECM)
L5P - ECM Exchange Serivce
Engine Cntrl Module
