FAQ

certificate
JFN Certificate of completion


What are the benefits of having a JFN remap?


Up to 15% fuel saving
Up to 35% more power
Up to 35% more torque
Improved drivability
A quieter, smoother ride
A more responsive drive


Is the same remap used for all vehicles?

Each and every remap is custom to the individual vehicle so you get exactly what you need. We offer a choice of 3 upgrade options: Economy, Ecopower and Ultimate Power.


 What is ECU remapping ?

A remap or engine management software upgrade is when we rewrite the software on your engine’s ECU enabling a safe gain in power and torque. The result of this is improved drivability, with the added bonus of enhanced fuel economy on diesel engines.


Do I need to come to you to have the ECU remapping done ?

At JFN tuning we come to you to carry out all software upgrades.


What warranty do you give on the ECU remap?

All of our remaps have a lifetime software warrenty.


Is there any proof that software upgrade has been carried out?

You will receive a JFN tuning certificate of completion once the work has been done.


How much does it cost?

From £350