Stage 2
Stage 2 · Petrol · 1.8i 16v 140hp
Opel Vectra-B 2.0 16V Stage 2 file Siemens
Opel Vectra-B 2.0 16V Petrol 100 kW (136 HP) Stage 21998, Petrol, 100 kW (136 hp)
140 → 159 HP +19 HP +25 Nm 14% more power
Calibrated ECU file . Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
Performance projection
Matched engine: 1.8i 16v 140hp, Z18XER, 1.8L, Petrol. Engine #5745 in our gains database.
- Power
- 159 HP+19 HP from 140
- Torque
- 200 Nm+25 Nm from 175
- Fuel economy
- −8 %−12% full load
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
Your read must show hardware 5WK90740.
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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 2, Petrol.
Hardware
- Sport / decat downpipe (or sports-cat)
- High-flow air intake
- Optional: front-mount intercooler upgrade for sustained boost
Software / calibration
- Cat-warm-up & secondary lambda re-mapped for decat hardware
- Boost target raised in line with cooling capacity
- Knock / ignition advance re-trimmed
- Idle and load-transition tables refined
Stage 2 keeps the factory turbo and internals. Final figures vary slightly with the exact hardware fitted.
Vehicle & ECU specifications
Exact vehicle, engine and ECU identifiers this calibration file is written for. Cross-check against your ECU before flashing.
| Vehicle make | Opel |
|---|---|
| Vehicle model | Vectra |
| Model year | 1998 |
| Displacement | 2.0 L |
| Fuel / Induction | Petrol |
| Factory power | 100 kW (136 HP) |
| ECU manufacturer | Siemens |
| ECU hardware | 90464731 |
| ECU software | 5WK90740 |
| Calibration stage | Stage 2 |
| Cylinder capacity | 1796 CC |
| Compression ratio | 10,5 : 1 |
| Bore × Stroke | 80,5 X 88,2 mm |
| OEM engine code | Z18XER |
| 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 | 140 HP | 175 Nm | — | — |
| Stage 1 | 150 HP | 190 Nm | +10 (7.1%) | +15 |
| Stage 2 | 159 HP | 200 Nm | +19 (13.6%) | +25 |
| Stage 3 | 231 HP | 271 Nm | +91 (65%) | +96 |
| Stage 4 | 273 HP | 324 Nm | +133 (95%) | +149 |
About this calibration file
The Stage 2 calibration for the 1998 Opel Vectra 2.0L Petrol is written for vehicles with supporting bolt-ons: a higher-flow downpipe or sports catalyst, upgraded intercooler and upgraded intake are recommended. Boost targets, fuel-rail pressure, injector duration and VGT positioning are pushed further than a Stage 1 map while keeping exhaust-gas temperatures inside safe bands.
This file matches a Siemens ECU with hardware number 90464731 and software version 5WK90740. 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: 159 HP and 200 Nm at the crank — a gain of +19 HP (14%) and +25 Nm over the factory 140 HP / 175 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
90464731 (Siemens) listed in the specifications. Read your ECU with any supported tool (KESS, KTAG, AutoTuner, CMD, etc.) and compare the hardware + software numbers against the ones on this page. If they match exactly, the file is a direct fit. If you're not 100% sure, upload your original read via the file-request wizard and our engineers will confirm within minutes — no cost, no obligation.Product details
This product contains a calibrated Stage2 tuning file for Opel Vectra-B 2.0 16V 1998 Benzin 100KW with Siemens 5WK90740. The base stock vehicle for this calibration has a factory output of around 100 kW (~136 HP). Stage 2 is intended for cars with supporting modifications (exhaust, intake, intercooler) and delivers a stronger performance gain.
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 such as 5WK90740. Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
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