BHP+25 hp (7%)
Standard
365 hp
Tuned
390 hp
Torque+36 Nm (4%)
Standard
894 Nm
Tuned
930 Nm
Suitability
Moderate (5.5/10)Gains Profile
Limited headroomHeadroom
LowGMC Savana 6.6 V8 365hp ECU Remapping
Considering an ECU remap for your GMC Savana 6.6 V8 365hp? A Stage 1 remap can take this 2003 -> diesel engine from 365 BHP to 390 BHP and from 894 Nm to 930 Nm of torque (turbocharged). This engine scores 5.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your GMC Savana can achieve.
How this engine compares
- 1stof 6 GMC Savana engines by power gain
- 28%of the 9,842 engines we hold gain data for see a smaller power increase
- 20%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The GMC Savana 6.6 V8 365hp is a 6.6L turbocharged diesel engine producing 365 BHP and 894 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 390 BHP and 930 Nm — a gain of around 25 BHP (7%) and 36 Nm (4%).
This engine has moderate remap suitability, though the available headroom is limited, so gains are modest compared to higher-output variants. The tuning headroom is classified as limited, based on the percentage gain available from the factory output.
Considerations: High tuned torque: check transmission torque capacity and service history.. Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
Considerations
!High tuned torque: check transmission torque capacity and service history.
!Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.