
Mercury Remapping Service
A Mercury in Ireland is a private import, kept on the road by someone who loves it. A remap written in-house for your engine gives the V6 or V8 sharper response without spoiling how smooth it is.
Remap Calculator
See what your Mercury makes now and after a remap, then book it in.
- All work carried out by a qualified motorsport engineer
No figures are available for this engine yet.
Stage 1, standard to remapped
What a Stage 1 remap does for popular Mercurys
Mercury Mountaineer 4.0 V62005 to 2010 · Petrol
Power: 210 hp standard, 230 hp at Stage 1, 20 hp more.
Torque: 344 Nm standard, 365 Nm at Stage 1, 21 Nm more.
Mercury Mariner 2.5i2005 to 2012 · Petrol
Power: 171 hp standard, 190 hp at Stage 1, 19 hp more.
Torque: 232 Nm standard, 250 Nm at Stage 1, 18 Nm more.
Mercury Grand Marquis 4.6 V82003 to 2012 · Petrol
Power: 239 hp standard, 260 hp at Stage 1, 21 hp more.
Torque: 382 Nm standard, 400 Nm at Stage 1, 18 Nm more.
Mercury Sable 3.0 V62004 to 2009 · Petrol
Power: 201 hp standard, 220 hp at Stage 1, 19 hp more.
Torque: 281 Nm standard, 300 Nm at Stage 1, 19 Nm more.
Figures from our Remap Calculator. Your own car is measured on our 4WD dyno on the day.
Why Remap Your Mercury?
Mercury was Ford's mid-range brand until 2011, so its engines and gearboxes are close relations of the ones we remap on Ford cars. A remap gives a bit more urgency when you pull out and a gearbox that doesn't hang on to the wrong gear. On the Mountaineer and Mariner, our SUV remapping is the place to start, and a custom exhaust lets a V8 sound the way it should.
Mercury Petrol Engine Tuning
The Mountaineer's 4.6 V8 makes 292hp and 427Nm as standard. Our Remap Calculator shows a typical 310hp and 450Nm at Stage 1. That's typical for a car in good health. On an older car, the first run on our 4WD dyno also shows up anything that needs attention.
Look up your Mercury in the calculator above, or call us on 087 744 2633.
Benefits of ECU Remapping
Remapping your Mercury with JTK Remapping Ireland has several benefits, including:
- ✅ Unlocking Hidden Power
- ✅ Better Fuel Economy & MPG
- ✅ Up to a 35% increase in BHP on a Stage 1 Remap
- ✅ Up to 50% more torque
- ✅ Up to 20% better fuel economy
- ✅ Better throttle response
- ✅ Safer overtaking & acceleration
- ✅ Lifetime software warranty
- ✅ EGR & DPF solutions available
- ✅ DSG/TCU tuning
- ✅ Car, 4X4, commercial, truck & tractor ECU remapping
- ✅ Vehicle & mobile diagnostics
At our workshop in Dungarvan
What happens on the day
Check your Mercury in the Remap Calculator or give us a call, then book it in. On the day it goes on our 4WD dyno for a before run, the map is written for your engine, and an after run shows you the difference in power and torque.
If your Mercury is an automatic, ask us about a gearbox (TCU) remap on the same visit.
Trusted by thousands of customers
Perfect experience from start to finish. Very easily dealt with. Got my mk7 golf r remapped difference is like night and day. Can’t thank the team enough
Pa P.
Great service, really happy with the remap and downpipe. Car feels brilliant now - highly recommend!
Cian W.
So I got a hybrid turbo from muchboost installed in my Mercedes c220 and was advised to get a custom remap on a dyno so I contacted John got it booked in and he also offered hydro clean as an option and It was worth every penny I couldn’t believe the difference it made plenty of power and ticking over like a dream thanks again
Keith T.
Mercury models we remap
We remap the full Mercury range, including:
- Grand Marquis
- Mariner
- Mountaineer
- Sable
Mercury remap questions
Book Your RemapWhat will my Mercury make after a remap?
Pick your model, year and engine in the Remap Calculator for the standard and remapped figures. On the day, the dyno shows what your own car makes before and after.
Can you remap the gearbox on an automatic Mercury?
Yes. Ask us about a gearbox (TCU) remap on the same visit, for quicker shifts and room for the extra torque.
How do I book my Mercury in?
Check it in the Remap Calculator above and press Book Your Remap, or ring us on 087 744 2633.











