Stage 1 Remap

Safe, Reliable Power Gains for All Makes & Models

At RAT Remaps & Tuning, we specialise in unlocking the hidden potential of your vehicle’s engine with our expertly developed Stage 1 ECU remapping solutions. This is the most popular and widely recommended upgrade for both petrol and diesel vehicles — designed to safely increase power, torque, and drivability without the need for any hardware modifications.

What Is a Stage 1 Remap?

A Stage 1 remap is a software-only upgrade to your vehicle’s Engine Control Unit (ECU). Every modern engine is controlled by an ECU, which manages fuel delivery, ignition timing, boost pressure, and numerous other parameters. Manufacturers set these parameters conservatively to account for varying fuel quality, climates, and driving conditions worldwide.

Key Benefits of a Stage 1 Remap

Increased Power & Torque

Gains vary by engine but typically range from 20% to 35% more power and torque.

Sharper Throttle Response

Quicker acceleration and more immediate engine reaction to driver input.

Improved Fuel Efficiency

In many cases, economy improves by 5–15% under normal driving conditions.

Smoother Power Delivery

Enhanced drivability with linear, predictable torque curves.

Safe & Reliable

No hardware changes required all factory safety limits and tolerances remain intact.

How the Process Works

Diagnostics & Health Check: Before we start, we perform a full ECU diagnostic scan and visual inspection to ensure the engine is in good condition.

ECU Reading: We use industry-leading tools to read the original ECU file via the OBD port or directly from the ECU if required.

Custom Remapping: Our software engineers then fine-tune fuel, boost, and ignition maps specifically for your engine.

Programming: The new software is safely written back to the ECU.

Testing & Verification: We carry out post-remap checks to confirm performance gains, smooth delivery, and no fault codes.

Compatibility

RAT Remaps & Tuning offers Stage 1 ECU remaps for all makes and models, including petrol, diesel, hybrid and turbocharged engines. We work on everything from city cars and SUVs to performance models, commercial vans, and luxury vehicles.

Our database contains thousands of vehicles with their typical power and torque gains — so you’ll know exactly what improvement to expect before we start.

Why Choose RAT Remaps & Tuning?

✅ We tune all makes and models – from small hatchbacks to high-performance sports cars

✅ Custom calibrations developed in-house and tailored to your vehicle

✅ Lifetime software warranty and free diagnostics with every remap

✅ Mobile and workshop-based service available across London, Essex, Kent, and Hertfordshire

Benefits of Stage 1

Stage 1 remaps are available for a wide range of German cars and vans including