Your Vehicle
Porsche 911 3.8i GTS 430hp
Technical Specifications
Power and torque increase
Stage 1: software remap only, no mechanical changes, fully reversible.
Stage 1: file 100 € online + installation 350 € at the workshop (via the OBD port) Book now
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: 350 € network price, the workshop may charge less, paid at the chosen workshop (via the OBD port) · terms
Power Graph
Porsche 911 3.8i GTS 430hp: da 430 a 450HP
Remapping Porsche 911
MasterTuning develops remapping for Porsche. La Porsche 911 3.8i GTS 430hp può passare da 430 HP a 450 HP con un incremento di 20 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 Porsche 911 3.8i GTS 430hp
The Porsche 911 3.8i GTS 430hp is equipped with a petrol engine that produces 430 HP and 440 Nm of torque in its factory configuration. With MasterTuning's professional ECU remapping, this Porsche can achieve 450 HP (+5%) and 460 Nm (+5%).
Our Stage 1 tuning for the 911 2011 - 2015 ( 991 ) delivers an impressive gain of +20 HP and +20 Nm, optimizing the petrol engine's performance while maintaining reliability and staying within safe parameters.
The engine code MA1.03 identifies this specific powerplant configuration. The Siemens/Continental SDI9 ECU is professionally recalibrated to unlock hidden potential while preserving engine longevity.
With 430 HP from factory, this Porsche 911 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 — Porsche 911 3.8i GTS 430hp
Factory technical data for the Porsche 911 3.8i GTS 430hp (2011 - 2015 ( 991 )), 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 | MA1.03 |
|---|---|
| ECU / Control unit | Siemens/Continental SDI9 |
| Fuel | Petrol |
| Compression ratio | 12.5 |
| Bore × stroke | 102.0 X 77.5 mm |
| Stock power | 430 HP · 440 Nm |
| Remapped power (Stage 1) | 450 HP (+20) · 460 Nm (+20) |
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 Porsche 911.
Frequently Asked Questions - Porsche 911
How much power can I gain from remapping my Porsche 911?
With MasterTuning Stage 1, your Porsche 911 3.8i GTS 430hp can gain +20 HP (from 430 to 450 HP) and +20 Nm of torque. This represents a 5% increase in power.
Which ECU does the Porsche 911 3.8i GTS 430hp use?
The Porsche 911 3.8i GTS 430hp uses the Siemens/Continental SDI9 engine control unit. MasterTuning recalibrates this ECU for Stage 1 and Stage 2.
What is the engine code of the Porsche 911 3.8i GTS 430hp?
The engine code of the Porsche 911 3.8i GTS 430hp is MA1.03. You can find it in the vehicle documents or on the engine plate.
Is ECU remapping safe for the Porsche 911 engine?
Yes, MasterTuning's remapping for the Porsche 911 3.8i GTS 430hp is developed within safe parameters. Each file is developed on your vehicle, checked in the workshop and stays within the mechanical limits of the MA1.03 engine.
Is the Porsche ECU remapping reversible?
Absolutely. The original factory calibration of your Porsche 911 is always backed up before remapping. The process is 100% reversible at any time.
Will remapping affect my Porsche 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.
Other Remaps You Might Like
Other Engines Porsche 911 2011 - 2015 ( 991 )
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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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