PORSCHE 718 CAYMAN GTS / BOXSTER GTS 982 REMAPPING AND TUNING
Unlock the full potential of your Porsche 718 Cayman GTS / Boxster GTS 982 with professional ECU remapping and performance tuning from Onyx Performance in Slough.
The 2.5 Turbo flat-4 petrol engine produces 365HP and 430Nm as standard. Our Stage 1 remap is designed to improve power, torque and throttle response, delivering stronger acceleration and a more responsive driving experience.
Whether you’re looking for a Stage 1 remap, Stage 2 tuning, gearbox tuning or supporting performance upgrades, we can help you choose the right solution for your Porsche.
PORSCHE 718 CAYMAN GTS / BOXSTER GTS STAGE 1 REMAP
Our Stage 1 remap is designed to improve the performance of your Porsche while retaining everyday drivability.
Standard Performance:
- Power: 365HP
- Torque: 430Nm
Stage 1 Performance:
- Power: 420HP
- Torque: 520Nm
Benefits of Stage 1 tuning include:
- Increased horsepower
- Increased torque
- Improved throttle response
- Stronger acceleration
- Improved in-gear performance
- Smoother power delivery
Before tuning, we recommend checking the vehicle’s mechanical condition, ignition system and spark plugs to help ensure the engine is operating correctly.
PORSCHE 718 CAYMAN GTS / BOXSTER GTS STAGE 2 TUNING
Looking for more performance from your Porsche 718 GTS? Our Stage 2 tuning options are designed for vehicles with suitable supporting modifications.
Estimated Stage 2 Performance:
- Power: Up to 450HP
- Torque: Up to 560Nm
Supporting modifications may include:
- Performance exhaust upgrades
- Sports catalytic converter or suitable downpipe
- Performance intake system
- Supporting hardware for the selected setup
Stage 2 performance depends on the vehicle’s hardware, mechanical condition and final calibration.
Call for a Stage 2 quote. Final performance figures depend on supporting modifications, vehicle condition and setup.
PORSCHE 718 GTS GEARBOX TUNING
We can also help with gearbox tuning for compatible Porsche 718 Cayman GTS and Boxster GTS models.
Gearbox tuning can help improve transmission response and complement the increased performance delivered by an ECU remap.
Potential benefits include:
- Improved gearshift response
- Faster gear changes where supported
- Optimised shift behaviour
- Improved transmission response under acceleration
- Better coordination between engine and gearbox
Gearbox tuning compatibility must be confirmed against your vehicle.
BEFORE TUNING
Before carrying out a remap, we recommend checking that your Porsche 718 GTS is in good mechanical condition.
Our pre-tuning checks may include:
- Diagnostic fault-code scanning
- Engine health checks
- Boost leak checks
- Intake system checks
- Smoke testing where appropriate
- Spark plug and ignition checks
- Misfire investigation
- Reviewing existing engine and transmission faults
Any underlying mechanical or electrical issues should be addressed before tuning. This helps ensure the vehicle is suitable for the requested performance upgrade.
SERVICING AND MAINTENANCE FOR PORSCHE 718 GTS
Keeping your Porsche 718 Cayman GTS / Boxster GTS properly maintained is important for reliability, performance and everyday driving.
We can help with:
- Oil and filter servicing
- Interim and major servicing
- Spark plug replacement
- Brake inspections and upgrades
- Diagnostic checks
- Cooling system maintenance
- Suspension checks
- Engine maintenance and repairs
Regular maintenance helps keep your vehicle performing as it should, particularly when increasing engine output.
PORSCHE 718 GTS EXHAUST UPGRADES
Want your Porsche 718 GTS to sound and perform differently?
We can help with suitable performance exhaust upgrades, depending on your preferred sound and performance requirements.
Options may include:
- Performance exhaust systems
- Sports catalytic converters
- Downpipe upgrades
- Exhaust sound enhancements
- Supporting exhaust modifications
The correct exhaust setup will depend on your vehicle and intended performance level.
PORSCHE 718 GTS PERFORMANCE UPGRADES
There are several ways to complement your Porsche 718 GTS remap with additional performance modifications.
Available upgrade options may include:
- Performance intake systems
- Intake upgrades
- Intercooler upgrades where applicable
- Exhaust upgrades
- Downpipe upgrades
- Supporting performance hardware
- Gearbox tuning where compatible
- Other suitable performance modifications
We can help you choose the right upgrades to complement your remapping and achieve your desired performance goals.
STYLING AND BODY UPGRADES
Enhance the appearance of your Porsche 718 Cayman GTS / Boxster GTS with suitable styling and body upgrades.
Options may include:
- Exterior styling
- Body styling enhancements
- Wheel upgrades
- Brake upgrades
- Suspension upgrades
- Appearance modifications
- Other suitable styling enhancements
We can help you choose upgrades that complement your Porsche.
PORSCHE 718 GTS VEHICLE SECURITY
Protect your Porsche 718 GTS with suitable vehicle security solutions.
We can discuss available options, including:
- Vehicle immobilisers
- Additional security systems
- Vehicle protection solutions
- Other suitable security upgrades
Contact us to discuss the security options available for your vehicle.
WHY CHOOSE ONYX PERFORMANCE?
At Onyx Performance in Slough, we offer professional vehicle remapping and performance upgrades for your Porsche 718 Cayman GTS / Boxster GTS.
Our services include:
- ECU remapping
- Stage 1 and Stage 2 tuning
- Gearbox tuning where compatible
- Servicing and diagnostics
- Exhaust upgrades
- Performance upgrades
- Styling enhancements
- Brake and suspension upgrades
- Vehicle security solutions
We focus on providing suitable tuning solutions based on your vehicle, its condition and your performance requirements.
PORSCHE 718 GTS REMAPPING IN SLOUGH
Onyx Performance is based in Slough, Berkshire, and provides professional Porsche remapping and performance tuning for customers in the surrounding areas.
We welcome customers from Windsor, Langley, Maidenhead, Heathrow, Uxbridge and West London.
Whether you’re looking for a Porsche 718 GTS Stage 1 remap, Stage 2 tuning or supporting performance upgrades, contact our team to discuss your requirements.
FREQUENTLY ASKED QUESTIONS
How much power can a Porsche 718 Cayman GTS / Boxster GTS make with a Stage 1 remap?
The standard 2.5 Turbo flat-4 engine produces 365HP and 430Nm. Our supplied Stage 1 performance figures are 420HP and 520Nm, subject to the vehicle’s condition and calibration.
Can I get a Stage 2 remap on my Porsche 718 GTS?
Yes, Stage 2 tuning may be available with suitable supporting modifications. Contact us to discuss the hardware requirements and obtain a Stage 2 quote.
Do I need modifications for a Stage 1 remap?
The supplied Stage 1 figures are intended for the stated vehicle configuration. We recommend checking the vehicle’s mechanical condition before tuning.
Can you tune the gearbox on my Porsche 718 GTS?
Gearbox tuning may be available depending on the transmission and software fitted to your vehicle. Compatibility must be confirmed before proceeding.
Do you carry out diagnostic checks before tuning?
We recommend pre-tuning diagnostic checks to identify existing faults and assess engine condition. This can include boost and intake checks, ignition checks, spark plug condition and misfire investigation.
Can I upgrade the exhaust on my Porsche 718 GTS?
Yes, suitable exhaust upgrades may be available, including performance exhaust systems and supporting exhaust modifications. The correct setup depends on your vehicle and performance requirements.
Can you provide performance and styling upgrades?
We can discuss suitable intake, exhaust, intercooler, brake, suspension and styling upgrades for your Porsche.
Is Stage 3 tuning available for the Porsche 718 GTS?
Stage 3 tuning is intended for more extensively modified vehicles. Requirements and achievable results depend on the supporting hardware and vehicle setup. Contact us to discuss your requirements.
Will my Porsche need an ECU or TCU unlock?
Some vehicles may require an ECU or TCU unlock before tuning can be carried out. Additional costs and turnaround times may apply. The exact ECU and software requirements must be confirmed on the vehicle.
BOOK YOUR PORSCHE 718 CAYMAN GTS / BOXSTER GTS REMAP
Ready to upgrade your Porsche 718 Cayman GTS / Boxster GTS?
Book your Porsche 718 Cayman GTS / Boxster GTS 982 Stage 1 remap with Onyx Performance in Slough, or contact us to discuss Stage 2 tuning and supporting upgrades.
We can also help with gearbox tuning, servicing, diagnostics, exhausts, intakes, intercoolers, performance parts, styling, brakes, suspension and vehicle security.
Call: 01753 439321
Monday–Friday: 10AM–6PM
Saturday: 10AM–3PM
Onyx Performance – Porsche 718 Cayman GTS / Boxster GTS 982 Remapping and Performance Tuning in Slough, Berkshire.
CONTACT ONYX PERFORMANCE
Transform your Porsche 718 Cayman GTS / Boxster GTS today with Onyx Performance. Whether you’re looking for Stage 1 or Stage 2 remapping, performance exhaust systems, styling enhancements, or vehicle security solutions, our expert team is here to help.
📞 Call us now on 01753 439321 to book your tuning service or discuss Stage 2 and security options!



