Jaguar S Type (X200) 1999-2007 4.0 V8 281bhp remap figures
Stock, this 1999-2007 Jaguar S Type petrol (4.0L) produces 281bhp and 389Nm. Our expected figures for a Stage 1 remap are 311bhp and 429Nm, an expected gain of up to 30bhp and 40Nm.
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 | 281 bhp | 311 bhp | +30 bhp |
| Torque | 389 Nm | 429 Nm | +40 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 281 bhp | 389 Nm | |
| Stage 1Maximum software-only performance | 311 bhp | 429 Nm | +30 bhp +40 Nm |
| Stage 1 EcoPerformance with economy in mind | 304 bhp | 426 Nm | +23 bhp +37 Nm |
| Eco mapEconomy first | 301 bhp | 424 Nm | +20 bhp +35 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 S Type
Naturally aspirated petrol engines have no boost to raise, so gains from software alone are more modest than on a turbocharged car and come from fuelling, ignition and throttle response.
Engine management is by a Denso 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 Jaguar S Type 4.0 V8 281bhp?
We expect 311bhp and 429Nm against 281bhp and 389Nm as standard: up to +30bhp and +40Nm. 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 Jaguar S Type 4.0 V8 281bhp?
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: 304bhp and 426Nm expected. The Eco map is economy first: 301bhp and 424Nm. Both still sit above the standard 281bhp and 389Nm.
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 Jaguar S Type figures
Other petrol variants
All petrol S Type (X200) variants · S Type (X200) 1999-2007 overview · All Jaguar figures