Sectors
Choose your sector for a detailed breakdown of what we can do.
Agricultural Machinery
Torque and response for field work, PTO loads, transport and steady-load efficiency.
Agricultural DetailsConstruction Equipment
Low-RPM pull and productivity for dig/haul cycles with a reliability-first approach.
Construction DetailsCommercial Vehicles & Cars
Smoother drivability for vans/trucks/cars, payload work and repeat-route economy (vehicle dependent).
Commercial DetailsServices Explained
Clear breakdown of what each service does and how it helps.
ECU Remapping
Recalibrates engine control software to improve torque delivery and drivability under load.
- More usable low/mid RPM torque
- Smoother throttle response
- Torque shaped for driveline safety
Fuel Efficiency Tuning
Targets efficiency by improving torque delivery so the engine works less for the same job.
- Reduced throttle effort
- Less gear hunting (vehicle dependent)
- Results vary by workload and condition.
EGR Support
EGR faults can cause warning lights, smoke, hesitation and rough running. We diagnose and advise solutions.
- Fault code diagnosis support
- Live-data checks
- Restore drivability
DPF Support
DPF issues can trigger limp mode and rising fuel use. We assess soot/load and advise the best route.
- DPF load checks & diagnostics
- Regen troubleshooting
- Usage-based advice
AdBlue / SCR Support
AdBlue faults often come from sensors, injectors or control issues. We diagnose and advise reliable solutions.
- SCR/AdBlue fault diagnosis
- Sensor plausibility checks
- System fault support
Power Tuning
When extra performance is needed, calibrated responsibly for smooth delivery.
- Performance where appropriate
- No aggressive spikes
- Matched to workload & traction
Stage 1, Stage 2 & Stage 3 Remapping
Every vehicle is different. The supporting modifications required for a Stage 1, Stage 2 or Stage 3 calibration depend on the engine, turbo, fuel system, ECU, gearbox, clutch, cooling system, exhaust and intended power output.
Stage 1 Remap
A Stage 1 remap is generally designed to work with a standard, mechanically healthy vehicle without requiring major hardware modifications.
Typical checks before a Stage 1 remap include:
- Engine and gearbox health
- Turbocharger condition
- DPF / GPF condition where fitted
- EGR system operation
- AdBlue / SCR system operation where fitted
- Cooling system
- Fuel system
- Clutch and dual-mass flywheel condition
- Diagnostic fault codes
- Boost and air-intake system
- General service condition
Usually no hardware modifications are required
A Stage 1 calibration can normally be carried out on a standard vehicle, provided the vehicle is suitable and in good mechanical condition.
Stage 2 Remap
Stage 2 is intended for vehicles with supporting hardware modifications. The exact requirements vary considerably between engines.
Common Stage 2 modifications may include:
- Performance air intake
- High-flow panel or induction filter
- Upgraded intercooler
- Larger or freer-flowing intercooler pipework
- Turbo-back or sports exhaust system where appropriate
- High-flow downpipe where legally permitted
- Upgraded charge pipes
- Upgraded diverter / blow-off valve on applicable turbocharged petrol engines
- Upgraded clutch where the original clutch cannot safely handle the additional torque
- Improved engine cooling where required
The ECU calibration should then be matched to the modifications fitted to the vehicle.
Stage 2 does not mean every modification is required on every vehicle. Requirements depend on the engine, turbocharger, fuel system, transmission and intended power output.
Stage 3 Remap
Stage 3 is generally aimed at vehicles with significant performance hardware upgrades and is normally a more comprehensive build.
Depending on the vehicle and power target, modifications may include:
- Upgraded or hybrid turbocharger
- Larger intercooler
- Upgraded intake system
- High-flow exhaust system
- Upgraded downpipe where legally permitted
- Upgraded fuel pump
- Larger or upgraded injectors where required
- Upgraded charge-air system
- Upgraded clutch or transmission
- Upgraded engine cooling
- Oil cooling improvements
- Stronger engine components where required
- Improved engine management and monitoring
- Additional sensors / instrumentation where appropriate
Stage 3 calibration should be developed specifically around the hardware fitted to the vehicle rather than using a generic file.
Before Any Performance Remap
At KD Performance Tuning, we recommend checking the vehicle before increasing power or torque.
A vehicle with an existing mechanical fault may become unreliable when additional load is placed on the engine, turbocharger, clutch or transmission.
We can assess the vehicle and advise what supporting modifications may be appropriate for your intended performance level.
Every Vehicle Is Different
There is no universal Stage 1, Stage 2 or Stage 3 specification.
The modifications required depend on:
Engine • Turbo • Fuel System • ECU • Gearbox • Clutch • Cooling • Exhaust • Intended Power Output
Our aim is to achieve usable power, reliable torque and smooth drivability , while taking the vehicle's existing hardware into account.
KD Performance Tuning
Power Through Performance
How it works
Simple process designed around reliability and real-world performance.
1) Health Check
We start with diagnostics to ensure the machine/vehicle is suitable.
- Fault codes
- Sensor checks
- Condition review
2) Read & Analyse
We read ECU data and match the approach to your workload.
- Calibration review
- Workload targets
- Safe limits
3) Custom Calibration
Smooth response and usable torque, tuned for real work.
- Drivability
- Torque shaping
- Refinement
4) Verify & Handover
Final checks and clear explanation of what's been done.
- Verification
- Advice
- Support
FAQ
Quick answers to common questions.
Is tuning safe?
Safest when the vehicle/machine is healthy and the calibration is shaped responsibly for the workload.
Will I definitely save fuel?
Fuel savings depend on workload, routes, condition and driving style. Repeat routes and steady loads are best.
What do you need for a quote?
Enter ONE of Registration/VIN/Serial, choose the work/options and send via WhatsApp.
Do you tune agri / construction / commercial / cars?
Yes — we work across all sectors (case-by-case depending on vehicle/machine and condition).
Vehicle Lookup & Quote (Avon + WhatsApp)
Use the Avon lookup if you want, then enter ONE of Registration / VIN / Serial number and choose the work to be done.
Avon Vehicle Lookup
If you're opening from file:/// (Notepad), the Avon widget may not render. Test on Netlify or a local server (http://localhost).
You only need to fill ONE of Registration, VIN or Serial number.
Contact
Fastest response: call or text. Email also available.