Stage 1 Remap Glasgow. A Stage 1 remap in Glasgow is the most popular performance upgrade we carry out — a custom ECU remap written to work on a completely standard vehicle with no hardware changes. Our Stage 1 remap Glasgow service sharpens throttle response, lifts torque across the mid-range and unlocks up to 30–40% more power on turbocharged engines, all within the safe limits of your engine and drivetrain. Every file is custom-written to your exact vehicle and dyno-tested at our Glasgow workshop, with the original map always saved.