Lexus IS 2005 - 2013 F 5.0 V8 423hp
Real standard and upgraded performance figures for the F 5.0 V8 423hp engine in the Lexus IS 2005 - 2013.
The Lexus IS 2005 - 2013 F 5.0 V8 423hp is one of the engines we work on regularly — here's what a stage remap typically changes for it.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 423 | 505 |
| Stage 1 | 448 | 525 |
| Stage 2 | 460 | 535 |
- Make
- Lexus
- Model
- IS
- Generation
- 2005 - 2013
- Engine
- F 5.0 V8 423hp
- Fuel type
- petrol
Frequently asked questions
Is Stage 1 tuning safe for the Lexus IS 2005 - 2013 F 5.0 V8 423hp?
Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.
How much more power does the F 5.0 V8 423hp make after tuning?
Standard output is 423 HP / 505 Nm; Stage 1 on this engine typically reaches 448 HP / 525 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a Lexus IS 2005 - 2013 F 5.0 V8 423hp remap take?
Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.
Can the F 5.0 V8 423hp be reverted to its original file?
Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.