Mercury Grand Marquis 4.6 V8 239bhp tuning file
2003 (2012) · Petrol · ECU: Ford EEC-V
Stage 1 remap: +21 bhp & +18 Nm
ECU
Read methods
Available solutions
Upload the original read of your Mercury Grand Marquis 4.6 V8 239bhp and we'll return a Stage 1 tuning file worth 260 bhp and 400 Nm – up from 239 bhp and 382 Nm, an increase of +21 bhp (9%) and +18 Nm. Every file is checked by a calibrator on the Ford EEC-V before release, and DTC Removal can be combined in one upload.
Who is this remap for?
Naturally aspirated petrol engines gain less than turbo engines, but a remap still improves throttle response and smooths out flat spots in the power delivery. 239 → 260 bhp equals roughly 178 → 194 kW.
Figures are guide values from our rolling road and comparable vehicles. Results depend on the vehicle's condition, hardware and fuel quality. Remapping in the UK: let your insurer know about the modification. DPF, EGR and AdBlue solutions are supplied for off-road and motorsport use only and are not legal for use on UK roads.
Engine specification
| Fuel type | Petrol |
| Engine size | 4601 CC |
| Compression ratio | 9.3 : 1 |
| Bore × stroke | 90.2 X 90.0 mm |
| Engine code | Modular 4.6 |
Try our tuning file service today
Open a free account on the file service portal, claim 5 test credits and upload your first read – most files are back with you in under 15 minutes.