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north wales, remapping, ecu tuning, specialist, agt performance, remap, tuning, audi, upgrade, vehicle, garage, tuning software, tuning parts, tune, dealers, northwales, golf r, stage 1, stage 2, stage 3, celtic tuning, apr tuning, racing line tuning, racechip tuning, alive tuning, ghost autowatch, security, vehicle security, vehicle security north wales
north wales, remapping, ecu tuning, specialist, agt performance, remap, tuning, audi, upgrade, vehicle, garage, tuning software, tuning parts, tune, dealers, northwales, golf r, stage 1, stage 2, stage 3, celtic tuning, apr tuning, racing line tuning, racechip tuning, alive tuning, ghost autowatch, security, vehicle security, vehicle security north wales
ALIVE™ Tuning Logo
north wales, remapping, ecu tuning, specialist, agt performance, remap, tuning, audi, upgrade, vehicle, garage, tuning software, tuning parts, tune, dealers, northwales, golf r, stage 1, stage 2, stage 3, celtic tuning, apr tuning, racing line tuning, racechip tuning, alive tuning, ghost autowatch, security, vehicle security, vehicle security north wales
north wales, remapping, ecu tuning, specialist, agt performance, remap, tuning, audi, upgrade, vehicle, garage, tuning software, tuning parts, tune, dealers, northwales, golf r, stage 1, stage 2, stage 3, celtic tuning, apr tuning, racing line tuning, racechip tuning, alive tuning, ghost autowatch, security, vehicle security, vehicle security north wales
Performance M Logo
north wales, remapping, ecu tuning, specialist, agt performance, remap, tuning, audi, upgrade, vehicle, garage, tuning software, tuning parts, tune, dealers, northwales, golf r, stage 1, stage 2, stage 3, celtic tuning, apr tuning, racing line tuning, racechip tuning, alive tuning, ghost autowatch, security, vehicle security, vehicle security north wales
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north wales, remapping, ecu tuning, specialist, agt performance, remap, tuning, audi, upgrade, vehicle, garage, tuning software, tuning parts, tune, dealers, northwales, golf r, stage 1, stage 2, stage 3, celtic tuning, apr tuning, racing line tuning, racechip tuning, alive tuning, ghost autowatch, security, vehicle security, vehicle security north wales

OFFERING YOU THE BEST SOLUTION FOR YOUR VEHICLE. 

Welcome to AGT the leading performance tuning specialists in North Wales.

Providing all aspects of vehicle tuning, preparation & maintenance. 

In proud partnership with the leading premium tuning brands.

Celtic Tuning - Alive Tuning - APR Tuning - RacingLine OEM+ - RaceChip - Performance M - SIMTEK

Unleash the ultimate performance enhancements for your vehicle.

north wales, remapping, ecu tuning, specialist, agt performance, remap, tuning, audi, upgrade, vehicle, garage, tuning software, tuning parts, tune, dealers, northwales, golf r, stage 1, stage 2, stage 3, celtic tuning, apr tuning, racing line tuning, racechip tuning, alive tuning, ghost autowatch, security, vehicle security, vehicle security north wales

HORSEPOWER

Improvements to the overall performance can be achieved with more turbo-boost, fuelling, and updated ignition maps, just by reprogramming your ECU.

north wales, remapping, ecu tuning, specialist, agt performance, remap, tuning, audi, upgrade, vehicle, garage, tuning software, tuning parts, tune, dealers, northwales, golf r, stage 1, stage 2, stage 3, celtic tuning, apr tuning, racing line tuning, racechip tuning, alive tuning, ghost autowatch, security, vehicle security, vehicle security north wales

SECURITY

The Auto Watch Ghost-II is the original aftermarket CAN bus immobiliser. Protect your car from theft like nothing else on the market today. 

north wales, remapping, ecu tuning, specialist, agt performance, remap, tuning, audi, upgrade, vehicle, garage, tuning software, tuning parts, tune, dealers, northwales, golf r, stage 1, stage 2, stage 3, celtic tuning, apr tuning, racing line tuning, racechip tuning, alive tuning, ghost autowatch, security, vehicle security, vehicle security north wales

TORQUE

It’s not always about power, a remapped car often enjoys much more torque throughout the rev range with low-down and mid-range torque improvements. You can even find your MPG going up,
as more torque means less gear-shifts!

north wales, remapping, ecu tuning, specialist, agt performance, remap, tuning, audi, upgrade, vehicle, garage, tuning software, tuning parts, tune, dealers, northwales, golf r, stage 1, stage 2, stage 3, celtic tuning, apr tuning, racing line tuning, racechip tuning, alive tuning, ghost autowatch, security, vehicle security, vehicle security north wales

PROFESSIONAL

With over 30 years of experience we pride ourselves on providing the best professional service from start to finish 

north wales, remapping, ecu tuning, specialist, agt performance, remap, tuning, audi, upgrade, vehicle, garage, tuning software, tuning parts, tune, dealers, northwales, golf r, stage 1, stage 2, stage 3, celtic tuning, apr tuning, racing line tuning, racechip tuning, alive tuning, ghost autowatch, security, vehicle security, vehicle security north wales

ECO

If you're looking to save money on fuel while still gaining sharper throttle response and reduced turbo lag along with additional power and torque then an economy engine remap is the product for you!

north wales, remapping, ecu tuning, specialist, agt performance, remap, tuning, audi, upgrade, vehicle, garage, tuning software, tuning parts, tune, dealers, northwales, golf r, stage 1, stage 2, stage 3, celtic tuning, apr tuning, racing line tuning, racechip tuning, alive tuning, ghost autowatch, security, vehicle security, vehicle security north wales

QUALITY

Combined with the experience our staff have we ensure that we are trained to the most up to date procedures and invest in all the latest technologies.

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COME AND VISIT US

With in house professionals readily available, get in touch today to have your questins answered or schedule a visit.
BOOK YOUR VISIT TODAY : 01286 875 400
north wales, remapping, ecu tuning, specialist, agt performance, remap, tuning, audi, upgrade, vehicle, garage, tuning software, tuning parts, tune, dealers, northwales, golf r, stage 1, stage 2, stage 3, celtic tuning, apr tuning, racing line tuning, racechip tuning, alive tuning, ghost autowatch, security, vehicle security, vehicle security north wales

CALL US

TEL : 01286 875 400

Mon - Fri: 8:00am - 5:00pm

Saturday: 8:30am - 12:30pm

EMAIL US

OPENING HOURS

THE BEST BRANDS

THE BEST SERVICE 

OUR SERVICES

VISIT US

Celtic Tuning
Alive Tuning
APR
RacingLine
RaceChip

Performance M

REMAP

DYNO

TUNING

TORQUE 

SECURITY

ECO

DIAGNOSTICS

SERVICING

Unit AH/Penygroes Ind Est

Caernarfon

LL54 6DB

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© 2025 AGT PERFORMANCE LTD

IGA BIG Awards Finalist 2022
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