Land Rover Range Rover P525 L405 Remapping and Tuning
Upgrade your Land Rover Range Rover P525 525HP with professional Stage 1 and Stage 2 ECU tuning from Onyx Performance in Slough, Berkshire. Our tailored remapping service for the 5.0-litre supercharged V8 petrol engine delivers impressive power and torque gains, improving throttle response, acceleration and overall drivability while retaining the refinement expected from your Range Rover.
The L405 Range Rover P525 combines a supercharged V8 engine with luxury SUV comfort and strong performance. Our ECU tuning is designed to make the most of this engine, delivering sharper acceleration, stronger torque and a more responsive driving experience.
Land Rover Range Rover P525 L405 Performance Figures
| Performance | Power (HP) | Torque (Nm) |
|---|---|---|
| Standard Performance | 525 | 625 |
| Stage 1 Remap | 620 | 740 |
| Stage 2 Remap | 650 | 780 |
Stage 1 Remap Price: £599.00
Original Price: £718.80
Stage 2 Remap: Call for a Stage 2 quote
All performance figures are indicative and can vary depending on vehicle condition, specification, fuel quality and other factors. Stage 2 tuning may require supporting hardware modifications.
Gearbox Tuning
A gearbox remap can complement your engine tuning by improving gearshift response, shift points and torque management. Our team can advise on the most suitable gearbox calibration for your Range Rover.
- Stage 1 Gearbox Remap: Contact for Price
- Stage 2 Gearbox Remap: Contact for Price
- Stage 3 Gearbox Remap: Contact for Price
BEFORE TUNING
Before carrying out any ECU remapping, we recommend ensuring your Range Rover is mechanically sound and properly maintained. We can assess the vehicle and check for relevant fault codes before tuning begins.
SERVICING AND MAINTENANCE
Regular servicing is important for maintaining the performance and reliability of your 5.0-litre supercharged V8 engine. We recommend keeping up with scheduled oil changes, filters and routine inspections, particularly if you regularly enjoy the vehicle’s performance.
EXHAUST UPGRADES
An upgraded exhaust system can complement your Range Rover’s performance setup. We can discuss suitable exhaust options based on your vehicle, intended use and performance goals.
PERFORMANCE UPGRADES
Alongside ECU and gearbox tuning, we can advise on supporting performance upgrades to help you get the most from your Range Rover. Any modifications should be selected to suit your requirements and maintain the vehicle’s reliability.
STYLING AND BODY UPGRADES
Give your Range Rover a distinctive appearance with styling and body enhancements. Contact our team to discuss options that complement the L405’s design and your preferred look.
VEHICLE SECURITY
Protect your vehicle with security solutions from Onyx Performance. Ask our team about available options to help improve your Range Rover’s security and peace of mind.
WHY CHOOSE ONYX PERFORMANCE?
At Onyx Performance, we provide tailored vehicle tuning and performance solutions with a focus on quality, customer service and reliable results. Our team will discuss your requirements and help you choose the right tuning package for your vehicle.
REMAPPING IN SLOUGH
Onyx Performance is based in Slough, Berkshire, offering professional ECU remapping and vehicle performance services. Contact us to arrange your Land Rover Range Rover P525 remap or discuss the tuning options available for your vehicle.
Frequently Asked Questions
How much power can a Stage 1 remap add to my Land Rover Range Rover P525?
The standard Range Rover P525 produces 525HP and 625Nm. Our indicative Stage 1 figures are 620HP and 740Nm, giving you stronger acceleration and improved pulling power.
How much power can a Stage 2 remap produce?
Our indicative Stage 2 figures are 650HP and 780Nm. Stage 2 tuning may require supporting hardware modifications, so contact us to discuss your vehicle and obtain a tailored quote.
Do I need hardware upgrades for Stage 1 or Stage 2?
Stage 1 tuning is generally designed around the standard vehicle hardware, provided it is in good mechanical condition. Stage 2 may require supporting hardware upgrades depending on the specification and condition of your Range Rover.
Can I have a gearbox remap with my engine remap?
Yes. A gearbox remap can complement your engine calibration by refining shift behaviour and torque management. Contact us to discuss the options available for your vehicle.
Can I have a dyno session?
Yes. We offer dyno sessions for £120.00. A dyno session can help assess your vehicle’s performance before or after tuning.
Do you offer Stage 3 tuning?
Stage 3 tuning may be possible depending on the vehicle’s specification and supporting modifications. Contact our team to discuss your requirements and the options available.
Does my Land Rover Range Rover P525 need an ECU unlock?
Your Range Rover P525 uses a Denso MB279700-series ECU. ECU access requirements can depend on the ECU hardware and software version fitted to your vehicle. We can check compatibility and confirm the appropriate unlocking or programming procedure before tuning.
BOOK YOUR REMAP
Contact Onyx Performance to book your Land Rover Range Rover P525 L405 remap. Our team can answer your questions, discuss your performance goals and help you choose the right tuning package.
Contact Onyx Performance
Transform your Land Rover Range Rover P525 L405 today with Onyx Performance. Whether you’re looking for Stage 1 or Stage 2 remapping, performance exhaust systems, styling enhancements, or vehicle security solutions, our expert team is here to help.
