Volkswagen Polo GTI 1.8 TSI Remapping and Tuning

Unlock the full potential of your Volkswagen Polo GTI 1.8 TSI with Onyx Performance, based in Slough, Berkshire, just outside West London. Whether you’re looking for Stage 1 tuning for improved power and responsiveness or Stage 2 upgrades for maximum performance, we offer expert ECU remapping, servicing, performance upgrades, and vehicle security solutions tailored specifically for your Polo GTI.

Our Stage 1 and Stage 2 tuning have been extensively developed in-house on our 4WD Dyno, ensuring optimal performance, reliability, and drivability.

Volkswagen Polo GTI 1.8 TSI Stage 1 & Stage 2 – Power Gains

Stage 1 – Power Gains:

Stock Performance: 189HP / 320Nm
Stage 1 Remap: 220-240HP / 370-380Nm
Hardware Required: None

Our Stage 1 remap is designed for vehicles with stock hardware, delivering instant improvements in power, torque, and throttle response without compromising reliability. The refined ECU calibration ensures stronger acceleration, enhanced turbo efficiency, and smoother drivability.

Stage 1 tuning provides a noticeable increase in power while maintaining everyday usability and fuel efficiency.

Stage 2 – Power Gains:

Stock Performance: 189HP / 320Nm
Stage 2 Remap: 260-270HP / 390-410Nm
Hardware Required:
- Decat Downpipe or High-Flow Sports Catalyst
- Cat-Back Exhaust System (Optional but recommended for enhanced performance and sound)
- Upgraded Air Filter
- Bigger Intercooler
- Onyx Performance Stage 2 Gearbox Software (Recommended for DSG Models)

Stage 2 tuning builds on Stage 1 with essential hardware modifications to improve airflow, cooling, and exhaust efficiency, unlocking even greater power and responsiveness.

Stage 2 is ideal for enthusiasts looking for maximum performance, providing enhanced acceleration and a more aggressive exhaust note.

Onyx Performance – Volkswagen Polo GTI 1.8 TSI Remap Service Includes:

✔ Rolling Road (Dyno) Testing for accurate power measurement
✔ Data Logging and Diagnostics to ensure optimal tuning
✔ Before and After Performance Printouts
✔ Engine Smoke Test to check for Boost/Vacuum Leaks
✔ Catalyst Efficiency Fault Code Delete (Optional)
✔ Speed Limiter Removal (Optional)
✔ Comprehensive Diagnostic Check

All remaps are developed in-house and tested to provide maximum performance without sacrificing reliability.

Exhaust Upgrades for Volkswagen Polo GTI 1.8 TSI

Upgrading your Polo GTI’s exhaust system enhances performance and sound. We offer:

? Decat Downpipes – Maximises exhaust flow for increased power
? High-Flow Sports Catalysts – Reduces backpressure while maintaining emissions compliance
? Cat-Back Exhaust Systems – Improves exhaust tone and performance
? Resonator Deletes – Adds a sportier, more aggressive exhaust note

Pairing an exhaust upgrade with Stage 2 tuning optimises power gains and delivers an exhilarating driving experience.

Servicing and Maintenance for Volkswagen Polo GTI 1.8 TSI

Regular servicing is essential to maintain reliability and peak performance. At Onyx Performance, we offer:

? Routine Servicing: Oil changes, filter replacements, and essential maintenance
? Brake Repairs and Upgrades: OEM replacements and high-performance braking systems
? Suspension Maintenance & Upgrades: Optimising handling and ride comfort
? Diagnostics and Fault Repairs: Advanced system checks to prevent potential issues

With our expertise in Volkswagen performance tuning, we ensure your Polo GTI runs at its best, mile after mile.

Styling, Performance Upgrades & Vehicle Security

Enhance your Volkswagen Polo GTI 1.8 TSI with custom styling, performance upgrades, and vehicle security solutions:

Styling and Performance Upgrades:

? Aero Kits & Carbon Fibre Components – Enhanced styling and aerodynamics
? Lowering Springs & Coilovers – Improved handling and aggressive stance
? Big Brake Kits – High-performance braking systems for superior stopping power

Vehicle Security Solutions:

Protect your Volkswagen Polo GTI with advanced security solutions, ensuring peace of mind:

? Autowatch Ghost Immobilisers – Prevents key cloning and unauthorised starts
? MetaTrak Trackers – Live GPS tracking with mobile app integration
? Scorpion Track Systems – Motion alerts and driver recognition for enhanced security
? Fleet Trackers – Ideal for monitoring and securing multiple vehicles

All security systems are professionally installed to seamlessly integrate and maximise protection.

Opening Hours and Contact Information

? Visit Us:

Location: Slough, Berkshire
Opening Hours:
Monday–Friday: 10 AM–6 PM
Saturday: 10 AM–3 PM
Closed Sundays
? Phone: 01753 439321
? Email: info@onyxperformance.co.uk

About Onyx Performance

At Onyx Performance, we specialise in high-quality tuning, remapping, servicing, upgrades, and security solutions for Volkswagen Polo GTI 1.8 TSI models, ensuring maximum performance, reliability, and efficiency.

Our dedicated team is committed to providing the best tuning solutions in the UK for Volkswagen performance vehicles.

Flexible Finance Options

? Spread the cost of your Volkswagen Polo GTI tuning, performance upgrades, and security solutions with our flexible finance plans, available over 4 monthly payments.

✅ All prices include VAT
✅ No hidden fees
✅ Simple application process

Contact Onyx Performance

Transform your Volkswagen Polo GTI 1.8 TSI today with Onyx Performance. Whether you’re looking for Stage 1 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 security options!

Explore all tuning packages in our shop – Klarna, PayPal & Clearpay available at checkout!

Volkswagen Polo GTI 1.8 TSI – Remap/Tuning Packages