Mercury Grand Marquis 4.6 V8 239hp Remap
Expected gains of +21 BHP and +18 Nm torque
Get Your Free Quote ↓BHP+21 hp (9%)
Standard
239 hp
Tuned
260 hp
Torque+18 Nm (5%)
Standard
382 Nm
Tuned
400 Nm
Suitability
Moderate (4/10)Gains Profile
Limited headroomHeadroom
LowMercury Grand Marquis 4.6 V8 239hp ECU Remapping
Considering an ECU remap for your Mercury Grand Marquis 4.6 V8 239hp? A Stage 1 remap can take this 2003 - 2012 petrol engine from 239 BHP to 260 BHP and from 382 Nm to 400 Nm of torque (naturally aspirated). This engine scores 4/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Mercury Grand Marquis can achieve.
How this engine compares
- 24%of the 9,842 engines we hold gain data for see a smaller power increase
- 7%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Mercury Grand Marquis 4.6 V8 239hp is a 4.6L naturally aspirated petrol engine producing 239 BHP and 382 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 260 BHP and 400 Nm — a gain of around 21 BHP (9%) and 18 Nm (5%).
This engine has limited 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.