Renault Magnum 400 400hp (294kW) 1850Nm — Stage 1 file (+60 hp)

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Chip tuning for Renault Magnum 400 400hp (294kW) 1850Nm ECU

Renault Magnum (I) 400 400hp (294kW) 1850Nm — mass-market diesel engine of the commercial segment of the Renault-Nissan-Mitsubishi Alliance group (Франция, 1899). Stage 1 chip tuning raises power from 400 to 460 hp (+60 hp, +15%) and torque from 1850 to 2130 Nm (+280 Nm).

Renault Sport is the performance division that builds RS models and the Megane Sport. dCi is Renault's signature designation for its turbo diesels. Renault was a pioneer of compact common-rail diesels in Europe. Renault diesel engines are also used in Nissan, Dacia and Mercedes (the Citan/Vito run Renault engines).

Within the Renault-Nissan Alliance, ECUs are partly standardised, so some files carry over between brands. On older-generation Renault models, Stage 1 is done via OBD without bench. The Renault community in France and Eastern Europe offers a large pool of ready-made Stage files. Top-tier Renault Sport engines sit at the power ceiling of the French mass market.

Frequently asked questions

What power gain do you get after chip tuning the Renault Magnum 400 400hp (294kW) 1850Nm?

The Stage 1 gain for the Renault Magnum 400 400hp (294kW) 1850Nm is 60 hp (+15%) over the stock 400 hp, for a total of 460 hp. Torque rises from 1850 to 2130 Nm (+280 Nm).

What is Stage 1 chip tuning for the Renault Magnum?

Stage 1 on the Renault Magnum 400 400hp (294kW) 1850Nm is a software ECU calibration with no hardware changes. The key maps (boost/ignition/lambda/torque) are adjusted while factory tolerances are preserved. The gain is +60 hp with no hardware changes.

What does Stage 1 give on the top-spec Renault Magnum 400 400hp (294kW) 1850Nm?

Stage 1 for the Renault Magnum 400 400hp (294kW) 1850Nm unlocks the potential built in by the factory but artificially capped to meet mass-market targets. A base of 750-800 hp is achievable once hardware is added.

How does Stage 2 differ from Stage 1 on the Renault Magnum 400 400hp (294kW) 1850Nm?

Stage 2 on the Renault Magnum 400 400hp (294kW) 1850Nm means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.

Does Stage 1 void the warranty on the Renault Magnum?

Stage 1 on the Renault Magnum voids the factory warranty on the engine and transmission — this is standard for all manufacturers. CHIPOK provides its own warranty on the quality of the remap.

How quickly is chip tuning of the Renault Magnum 400 400hp (294kW) 1850Nm done?

The full remap cycle for the Renault Magnum — from reading to writing the final file — takes 30-90 minutes depending on the ECU access method. The file is prepared at CHIPOK in 5-30 minutes.

Can you return to stock after Stage 1 on the Renault Magnum?

The original Renault Magnum ECU is always saved before flashing. Rolling back to the factory firmware is done with the same programmer in 25-30 minutes.

How much does Stage 1 cost for the Renault Magnum 400 400hp (294kW) 1850Nm?

The cost of Stage 1 for the Renault Magnum 400 400hp (294kW) 1850Nm is calculated in the calculator on this page — you select the options (DPF off, EGR off, AdBlue off, DTC off, etc.) and the price is capped by the package Max Price. Payment is by credits (1 cr = 1 €), with no subscriptions.

Last updated: 01.09.2026 · Source: manufacturer technical documentation · Measurements: CHIPOK dyno