Jeep Grand Cherokee (WJ) 1999-2004 4.7 217bhp remap figures
The Jeep Grand Cherokee 4.7 217bhp (1999-2004) is a petrol 4.7L model making 217bhp and 391Nm as standard. After a Stage 1 ECU remap we expect 247bhp and 436Nm - up to 30bhp and 45Nm more than stock.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 217 bhp | 247 bhp | +30 bhp |
| Torque | 391 Nm | 436 Nm | +45 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 217 bhp | 391 Nm | |
| Stage 1Maximum software-only performance | 247 bhp | 436 Nm | +30 bhp +45 Nm |
| Stage 1 EcoPerformance with economy in mind | 240 bhp | 432 Nm | +23 bhp +41 Nm |
| Eco mapEconomy first | 237 bhp | 430 Nm | +20 bhp +39 Nm |
Who is the Stage 1 map for?
- Drivers who want a sharper throttle and a small, honest gain from software alone.
- Owners who would rather keep the car standard in every other way.
- Anyone who wants the fullest software-only map for this engine, accepting that the gain is modest without a turbocharger.
What this means for your Grand Cherokee
Without a turbocharger the improvement comes from ignition, fuelling and throttle mapping rather than boost, so expect a smaller but still noticeable change in response.
Engine management is by a Motorola unit. Older engine management is simpler to work with, but age matters: worn sensors, leaks and tired components can hold back what a remap delivers, which is why we run a diagnostic check first.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the Jeep Grand Cherokee 4.7 217bhp?
We expect 247bhp and 436Nm against 217bhp and 391Nm as standard: up to +30bhp and +45Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the Jeep Grand Cherokee 4.7 217bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 240bhp and 432Nm expected. The Eco map is economy first: 237bhp and 430Nm. Both still sit above the standard 217bhp and 391Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More Jeep Grand Cherokee figures
Other petrol variants
All petrol Grand Cherokee (WJ) variants · Grand Cherokee (WJ) 1999-2004 overview · All Jeep figures