At Celtic Tuning, we offer specialized Renault truck ECU remapping and chip tuning services for diesel engines. Our software is created in-house to provide more torque, smoother driving, and better fuel efficiency for commercial operators.

Our Renault truck remaps are designed to enhance performance under load. This gives vehicles stronger pulling power and quicker acceleration. Many operators also notice improvements in fuel efficiency, which helps lower running costs for both single trucks and entire fleets.

We support a wide range of Renault trucks, including the Kerax, Magnum, Maxity, Midlum, and Premium. This ensures we cover the most popular models used in long-haul, regional, and distribution work.

All our software is developed to high standards of reliability and consistency. This gives fleet managers and drivers confidence that their vehicles will perform well every day.

For extra reassurance, Celtic Tuning also offers a mechanical breakdown warranty and a 14-day money-back guarantee.