Mercedes Gl 450 340
Engine Tuning in Nottingham
Mercedes Gl 450 340 in Nottingham. Standard and remapped figures for this exact engine.

- Fully dyno tested remaps
- 30 day money back guarantee
- Lifetime software warranty
- UK-wide local network
Remap stats
Mercedes Gl 450 340: standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+30 bhp · +9%- Standard340 bhp
- Remapped370 bhp
Torque
+35 Nm · +8%- Standard460 Nm
- Remapped495 Nm
Tuning figures are indicative estimates, not guaranteed results. Actual results depend on the condition of the vehicle.
Prices from £130
Fully dyno tested | 30 day money back guarantee | Lifetime software warranty
A stage 1 remap lifts the Mercedes Gl 450 340 from 340 bhp to 370 bhp, and from 460 Nm to 495 Nm of torque. That is 30 bhp (9%) more power and 35 Nm (8%) more torque from software alone, available in Nottingham.
These are indicative figures for a petrol Mercedes GL-class in good health. Your own results depend on the condition of the car.
Mercedes Gl 450 340 remap figures
- Fuel: Petrol
- Standard power: 340 bhp, remapped: 370 bhp (+30 bhp, +9%)
- Standard torque: 460 Nm, remapped: 495 Nm (+35 Nm, +8%)
- Service: stage 1 ECU remap, fully dyno tested
What a remap does for a petrol Mercedes GL-class
A petrol remap re-works the engine management calibration: air-fuel ratio, ignition advance and boost where fitted. The result is more power and a more immediate throttle, delivered by software rather than hardware changes.
How the Mercedes Gl 450 340 compares
Among the 2 petrol GL-class engines we have figures for, the Gl 450 340 ranks 2nd for power gain, 4 bhp below the GL-class petrol average of 34 bhp.
Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 30 bhp and 35 Nm sits at or above that benchmark.
Mercedes GL-class chip tuning in Nottingham
Remap Experts has a dedicated Nottingham site, so you deal with a local team backed by a national network. We regularly work with drivers in Mellton Mowbray, Retford, Nottingham, Newark-on-Trent and Mansfield and nearby areas of the East Midlands.
All our remaps are fully dyno tested, backed by a 30 day money back guarantee and covered by a lifetime software warranty. Request a quote online or call 0800 779 7864.
If you are closer to Leicester, Lincolnshire and Sheffield, those neighbouring Remap Experts sites can help too.

Ready for engine tuning on your Mercedes GL-class in Nottingham?
Send your registration and we will confirm the exact remap, the price and the next available slot.
Included
What we can do for your Mercedes GL-class
Stage 1 ECU remap
Add power and torque and improve driveability. Software only, tailored to your engine.
ECU repair and testing
Is your engine control unit playing up? We can arrange testing and repair, and source replacement ECUs.
DPF and EGR fault repair
Persistent DPF or EGR errors diagnosed and resolved in accordance with all current road-legal standards.
Engine carbon cleaning
Fault finding and carbon cleaning for the inside of your engine, typically completed in a couple of hours.
Same model
Other GL-class engines
From quote to remapped in four steps
No jargon and no pressure. Here is exactly what happens.
- 01
Find your vehicle
Choose your make, model and engine to see the standard and remapped power and torque for your car.
- 02
Request a quote
Send your details and we contact you by SMS or call back with a quote. No obligation.
- 03
Book with your local site
Your local Remap Experts site arranges the remap and answers any questions about your car.
- 04
Remapped and dyno tested
Your remap is fully dyno tested, with a 30 day money back guarantee and a lifetime software warranty.
Everything you need to know
Plain-English guides to how remapping works, what it does and what to check first.
- 6 min read
What is ECU remapping?
The engine control unit, what a remap changes, and who it suits.
Read guide - 5 min read
The benefits of ECU remapping
More torque, better driveability and the potential for better economy.
Read guide - 6 min read
How ECU remapping works, step by step
From reading the original software to the dyno test.
Read guide