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D300 to D350
$594.00
0-60 = from 6.5s to 5.8sPower = from
300ps to 350psTorque = from 650nm to 700nmTop Speed = from 135mph to
145mphPlease note – this is not a “re-map”. This is a genuine power
upgrade. We use the same process that is used on the production line to
ensure that the correct calibrations are uploaded to the
vehicle.Manufacturers specifications are maintained.
D300 to D350 | JLR 3.0L Ingenium MHEV Diesel OEM Performance Unlock
JLR manufactures D300 and D350 variants with identical mechanical hardware. Turbocharger assemblies, high-pressure fuel systems, injectors and mild-hybrid generator units share the same OEM specifications.
All performance differences originate from factory PCM mapping and CCF configuration limits. Our professional DoIP programming activates the dormant factory D350 calibration profile.
This is genuine production-line OEM calibration, not generic aftermarket remapping. It fully preserves dealer diagnostics, SOTA over-the-air updates and all factory diesel emission safety systems.
Core JLR Technical Specifications
- Stock D300 output: 300 PS / 650 Nm peak torque
- Unlocked D350 output: 350 PS / 700 Nm peak torque
- Total performance gain: +50 PS power and +50 Nm torque increase
- Improved low-end torque delivery for towing and off-road capability
- Compatible platform: EVA2.0 3.0L Ingenium MHEV Diesel (MY21–MY25)
- Updated modules: PCM, CCF, IPC cluster and central gateway ECU
- Fully retains DPF regeneration, SCR and emission system functionality
- 100% reversible coding with full pre-programming CCF file backup
JLR Diesel Powertrain Engineering Logic</h2>>
JLR’s 3.0L Ingenium diesel platform utilises unified hardware across D300 and D350 trim levels. No mechanical upgrades or component differences separate the two factory variants.
Original JLR engineering software implements calibrated restrictions to create tiered performance pricing. These limits regulate turbo boost pressure, fuel injection duration and MHEV assist output on base D300 models.
Our dealer-approved CCF configuration adjustment and PCM calibration removes these artificial software boundaries. We enable the official factory D350 mapping preloaded within stock vehicle firmware.
All OEM thermal protection, DPF load control and emission compliance protocols remain fully active after programming is completed.
Real-World Diesel Driving Benefits</h2>>
The D350 OEM calibration delivers sharper throttle response and improved low-end torque delivery. Enhanced mid-range power significantly improves highway overtaking and heavy-load towing performance.
The integrated MHEV mild-hybrid system synchronises perfectly with the upgraded PCM parameters, delivering smoother power transitions. Factory fuel efficiency, idle quality and cruising refinement remain unchanged.
As a pure OEM factory calibration, no aftermarket tuning compromises long-term engine durability or DPF system health. The instrument cluster updates fully to display accurate D350 performance metrics for complete OEM consistency.
OEM PCM & CCF Programming Procedure</h2>>
Our certified JLR technicians conduct a full pre-programming network diagnostic scan. We log all existing DTCs and securely back up the original factory CCF configuration file.
A professional DoIP VCI connection establishes encrypted Pathfinder gateway access. We enable factory D350 diesel powertrain flags and flash official OEM PCM calibration data.
All CAN and Ethernet-linked control modules receive synchronised updated parameters to ensure full system harmony. We clear residual fault codes and validate complete network stability.
A comprehensive road test verifies smooth, consistent diesel power delivery and fault-free vehicle operation before final handover.
Enjoy improved torque, stronger towing capability and enhanced dynamic performance without aftermarket modifications. All coding is fully reversible, dealer compliant and SOTA update safe.
Secure your D300 to D350 OEM upgrade today for professional JLR-grade diesel performance results.
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