Stage 1
Stage 1 · Diesel · R 420.18 dCi 420 HP 414hp
Renault Premium 420 420CDI Stage 1 file Bosch
Renault Premium 420 420CDI Turbo Diesel 308.9 kW (420 HP) Stage 12001, Turbo diesel, 308.9 kW (420 hp)
414 → 510 HP +96 HP +199 Nm 23% more power
Calibrated ECU file . Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
Performance projection
Matched engine: R 420.18 dCi 420 HP 414hp, 0.1L, Diesel. Engine #16405 in our gains database.
- Power
- 510 HP+96 HP from 414
- Torque
- 1165 Nm+199 Nm from 966
Real data from Gains API. Dyno curve = typical ECU-family projection. Final gains depend on fuel, altitude, wear.
How it works
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Read your ECU
With KESS, KTAG, AutoTuner or Flex. Keep the read: it is your way back.
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Match the numbers
The numbers in your read must be the ones listed on this page.
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Pay and download
Card, Apple Pay or Google Pay. The file is in your account straight away.
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Write it and drive
Write it back the way you read it. Not right for your car? We correct it free.
What the car needs
Required modifications: Stage 1, Diesel.
Hardware
- No hardware changes required: runs on completely stock hardware
Software / calibration
- Boost pressure optimised within factory turbo limits
- Injection timing & quantity remapped
- Smoke / EGT limiters refined
- DTCs left intact, factory safeties preserved
Stage 1 is a software-only calibration. Compatible with stock turbo, injectors, intercooler, exhaust and clutch.
Vehicle & ECU specifications
Exact vehicle, engine and ECU identifiers this calibration file is written for. Cross-check against your ECU before flashing.
| Vehicle make | Renault |
|---|---|
| Vehicle model | Premium 420 420cdi |
| Model year | 2001 |
| Fuel / Induction | Turbo Diesel |
| Factory power | 308.9 kW (420 HP) |
| ECU manufacturer | Bosch |
| Calibration stage | Stage 1 |
| File format | BIN / ORI |
| Checksum | Pre-corrected (ready to flash) |
| Delivery | Instant download after payment |
Engine performance matrix
Power, torque and fuel-economy figures for every tuning stage on this engine, sourced from the tuning-database Gains API. Values are healthy-engine crank numbers; real on-road gains vary with fuel, altitude and mechanical condition.
| Stage | Power | Torque | Δ HP | Δ Nm |
|---|---|---|---|---|
| Original / Factory | 414 HP | 966 Nm | — | — |
| Stage 1 | 510 HP | 1165 Nm | +96 (23.2%) | +199 |
| Stage 2 | 588 HP | 1420 Nm | +174 (42%) | +454 |
| Stage 3 | 621 HP | 1497 Nm | +207 (50%) | +531 |
| Stage 4 | 745 HP | 1787 Nm | +331 (80%) | +821 |
About this calibration file
The Stage 1 calibration for the 2001 Renault Premium 420 420cdi Turbo Diesel is a drop-in remap that works on completely stock hardware — no turbo, injector, intercooler or fuel-system upgrades required. Injection timing, boost targets, rail-pressure limits and torque maps are rebalanced to extract the safe headroom the OEM leaves untouched for fleet-fuel tolerance, altitude margin and warranty buffer.
This file matches a Bosch ECU. Verify both identifiers in your flashing tool before writing — an ID mismatch is the most common cause of a bricked ECU. If you are unsure, upload a read of your original file via the file-request wizard and our engineers will confirm compatibility before you flash.
Projected output on a healthy, stock-hardware example of this engine: 510 HP and 1165 Nm at the crank — a gain of +96 HP (23%) and +199 Nm over the factory 414 HP / 966 Nm baseline. These numbers are sourced from our Vehicle Performance Database, which aggregates dyno results across this engine family. Real-world gains depend on fuel grade, ambient temperature, mechanical condition and intake/exhaust state.
The file is delivered as a ready-to-flash BIN (and ORI backup where applicable) compatible with all major tools — KESS V2/V3, KTAG, AutoTuner, CMDFlash, Dimsport New Genius, MPPS, Flex, BFlash, PCMFlash, MMFlash — via OBD, bench or boot-mode as supported by your ECU family. Checksums are pre-computed and verified; no additional checksum tool is required. All files include a free revision if post-flash logs reveal a fuelling, boost or EGT issue.
Frequently asked questions
Product details
This product contains a calibrated Stage1 tuning file for Renault Premium 420 420CDI 2001 Turbodiesel 308.9KW with Bosch . The base stock vehicle for this calibration has a factory output of around 308.9 kW (~420 HP). This Stage 1 calibration is designed for stock hardware, offering a safe and reliable increase in power and torque for daily use.
All ECU tuning files from TUNING-DATABASE are prepared for professional use. They are useful whenever you search by ECU ID, hardware or software number the ECU part number in the product title.Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
3BD32437 23D0300B 4AB24EA2 BFA2D7C8 4BE96BD9 4BFC079E 82B839A2 ED4CB902