Your Vehicle
McLaren 675LT 3.8 V8 675hp
Technical Specifications
Power and torque increase
Stage 1: software remap only, no mechanical changes, fully reversible. Stage 2: remap combined with downpipe / sports air filter.
Stage 1: file 100 € online + installation 700 € at the workshop (on the bench) Book now Stage 2: quoted on request Ask for a quote
Power HP
Torque Nm
Buy the Stage 1 file, pay the installation at the workshop
100 € VAT included: the file developed for your engine, paid online
Installation: 700 € network price, the workshop may charge less, paid at the chosen workshop (on the bench) · terms
Power Graph · Stage 1
McLaren 675LT 3.8 V8 675hp: da 675 a 700HP
Values for Stage 1 (change the stage from the control above)
Remapping McLaren 675LT
MasterTuning develops remapping for McLaren. La McLaren 675LT 3.8 V8 675hp può passare da 675 HP a 700 HP con un incremento di 25 HP.
The development of each remap is customized by MasterTuning.
- 100% customised files with lifetime warranty
- Reference values for Stage 1: the file is developed on your vehicle and checked in the workshop
- Best performance, within safety margins
- Reduced fuel consumption
ECU Remapping Details McLaren 675LT 3.8 V8 675hp
The McLaren 675LT 3.8 V8 675hp is equipped with a petrol engine that produces 675 HP and 700 Nm of torque in its factory configuration. With MasterTuning's professional ECU remapping, this McLaren can achieve 700 HP (+4%) and 750 Nm (+7%).
Our Stage 1 tuning for the 675LT All delivers an impressive gain of +25 HP and +50 Nm, optimizing the petrol engine's performance while maintaining reliability and staying within safe parameters.
The engine code 38JBAC identifies this specific powerplant configuration. The Bosch ME17.8.3 ECU is professionally recalibrated to unlock hidden potential while preserving engine longevity.
With 675 HP from factory, this McLaren 675LT is already a performance vehicle. Our remapping extracts even more potential, delivering exhilarating acceleration and enhanced driving dynamics for enthusiasts who demand the best.
Technical Specifications — McLaren 675LT 3.8 V8 675hp
Factory technical data for the McLaren 675LT 3.8 V8 675hp (All), used by MasterTuning engineers to develop a remap tailored to this specific powerplant. Figures shown are reference values for Stage 1; the file is developed on your vehicle and checked in the workshop.
| Engine code | 38JBAC |
|---|---|
| ECU / Control unit | Bosch ME17.8.3 |
| Fuel | Petrol |
| Compression ratio | 8.7 |
| Bore × stroke | 93.0 X 69.9 mm |
| Stock power | 675 HP · 700 Nm |
| Remapped power (Stage 1) | 700 HP (+25) · 750 Nm (+50) |
Don't want to touch the ECU?
Rapid Dimsport add-on modules connect to the engine sensors with original connectors: they fit in a few hours and come off without a trace, leaving the factory software untouched. Useful on a leased car, one still under warranty or one you plan to sell soon. Check which ones fit your McLaren 675LT.
Frequently Asked Questions - McLaren 675LT
How much power can I gain from remapping my McLaren 675LT?
With MasterTuning Stage 1, your McLaren 675LT 3.8 V8 675hp can gain +25 HP (from 675 to 700 HP) and +50 Nm of torque. This represents a 4% increase in power.
Which ECU does the McLaren 675LT 3.8 V8 675hp use?
The McLaren 675LT 3.8 V8 675hp uses the Bosch ME17.8.3 engine control unit. MasterTuning recalibrates this ECU for Stage 1 and Stage 2.
What is the engine code of the McLaren 675LT 3.8 V8 675hp?
The engine code of the McLaren 675LT 3.8 V8 675hp is 38JBAC. You can find it in the vehicle documents or on the engine plate.
Is ECU remapping safe for the McLaren 675LT engine?
Yes, MasterTuning's remapping for the McLaren 675LT 3.8 V8 675hp is developed within safe parameters. Each file is developed on your vehicle, checked in the workshop and stays within the mechanical limits of the 38JBAC engine.
Is the McLaren ECU remapping reversible?
Absolutely. The original factory calibration of your McLaren 675LT is always backed up before remapping. The process is 100% reversible at any time.
Will remapping affect my McLaren warranty?
ECU remapping may affect your manufacturer warranty. We recommend checking your specific warranty terms. Many of our customers choose to remap after the warranty period or accept this trade-off for the significant performance gains.
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Book your remap or ask for a quote
Stage 1 can be bought online and is done at the workshop you choose; for Stage 2 we send you a quote.
Stage 2 is quoted on request: write to us and we will reply with price and timing.
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