AGT - Arwyn's Garage Tuning & Performance

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AGT - Arwyn's Garage Tuning & Performance The only 4x4 rolling road tuning specialist in North Wales. Vehicle tuning ECU & TCU remapping from top software developers.
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German car specialists (VAG), Land Rover, Ford & others. Maha 4WD & 2WD Rolling road dyno hire and power runs are available.

Lotus Elsie 220 CUP - ECU Master🏴󠁧󠁒󠁷󠁬󠁳󠁿 Yn ddiweddar, cwblhawyd uwchraddiad ECU Master ar y Lotus 220 CUP hwn. A tiwniwy...
01/10/2026

Lotus Elsie 220 CUP - ECU Master

🏴󠁧󠁒󠁷󠁬󠁳󠁿 Yn ddiweddar, cwblhawyd uwchraddiad ECU Master ar y Lotus 220 CUP hwn. A tiwniwyd o bell gan Northampton Motorsports ar ein dyno Maha.

🏁 We recently completed an ECU Master Black upgrade on this Lotus 220 CUP. And remotely tuned by Northampton Motorsport on our Maha dyno.

πŸ“² DM atom i ddarganfod beth allwn ni ei wneud i chi heddiw!
πŸ“© DM us to find out what we can do for you today!

πŸ‘¨β€πŸ’» [email protected] | 01286 875 400

BMW 330d ECU REMAP STAGE 1 πŸ“ˆπŸŸ’ Rydym yn darparu ystod lawn o wasanaethau yma yn AGT, nid dim ond remaps. Ni yw'r dewis cy...
22/09/2026

BMW 330d ECU REMAP STAGE 1 πŸ“ˆ

🟒 Rydym yn darparu ystod lawn o wasanaethau yma yn AGT, nid dim ond remaps. Ni yw'r dewis cyntaf ar gyfer ardal Gogledd Cymru o ran uwchraddio caledwedd a gwiriadau diagnostig!

β€’ Offer diagnostig lefel deliwr / Dealer-level diagnostic tools
β€’ Uwchraddio caledwedd ac perfformiad / Hardware & performance upgrade
β€’ Llogi sesiwn Dyno / Dyno session hire
β€’ Dyno tiwnio ac addasu / Dyno tuning and adjustment
β€’ Uwchraddio diogelwch / Security upgrade
β€’ Gwasanaethu / Servicing
β€’ Teiars a llawer mwy / Tyres & much more

🟒 We provide a full range of services here at AGT, not just remapping & tuning. We are the first choice for the North Wales area when it comes to hardware upgrades and diagnostic checks!

πŸ“² DM atom i ddarganfod beth allwn ni ei wneud i chi heddiw!
πŸ“© DM us to find out what we can do for you today!

πŸ‘¨β€πŸ’» [email protected] | 01286 875 400

19/09/2026

VW Golf R Mk7 ECU & TCU remap.

🏴󠁧󠁒󠁷󠁬󠁳󠁿 DM atom i ddarganfod beth allwn ni ei wneud i chi heddiw.

DM us to find out what we can do for you today!

πŸ‘¨β€πŸ’» [email protected] | 01286 875 400 πŸ“²

VAG Specialist - MAHA Dyno - Hardware & Software upgrades

🏴󠁧󠁒󠁷󠁬󠁳󠁿 Beth sy'n helpu i amddiffyn eich cerbyd rhag cael ei ddwyn ac yn lleihau costau eich yswiriant?Mae uwchraddiad d...
16/09/2026

🏴󠁧󠁒󠁷󠁬󠁳󠁿 Beth sy'n helpu i amddiffyn eich cerbyd rhag cael ei ddwyn ac yn lleihau costau eich yswiriant?
Mae uwchraddiad diogelwch yr immobiliser AutoWatch Ghost-II yn gwneud hynny!

What helps protect your vehicle from theft and lowers your insurance premium? The AutoWatch Ghost-II Immobiliser security upgrade does! πŸ‘»

🟒 Gyda’r cynnydd mewn lladradau cerbydau ar draws y DU, mae un dull o atal unrhyw un rhag dwyn eich car – AutoWatch Ghost-II yw'r peiriant Γ΄l-farchnad CAN Bus immobiliser gwreiddiol. Diogelwch eich cerbyd rhag lladrad fel dim byd arall ar y farchnad heddiw. Ar gais yswirwyr ac yn helpu premiymau IS! πŸ“‰

Key Features:
⚫ Protection from Key Cloning and Key Theft.
⚫ No RF transmissions; cannot be scanned for.
⚫ Cannot be bypassed using standard theft methods.
⚫ Undetectable using diagnostics.
⚫ No wire cutting means safer installations.
⚫ Immobilisation by communicating with the ECU.
⚫ PIN code via buttons on steering wheel/dash.
⚫ Unique user changeable PIN code.
⚫ Service/valet mode means the PIN code is never compromised.
⚫ Secure, unique emergency code should the PIN be forgotten.
⚫ Uses the on-board CAN data network.
⚫ No radio frequency signals.
⚫ No additional fobs.

🟒 With the rise in luxury vehicle theft across the UK, there is one method of stopping anyone from stealing your carβ€”the AutoWatch Ghost-II is the original aftermarket CAN bus immobiliser. Protect your vehicle from theft like nothing else on the market today. Requested by insurers and helps LOWER premiums! πŸ“‰

πŸ”‘ Gallwn gyflenwi a chodio allweddi newydd ar gyfer unrhyw gerbyd.
We can supply and code new keys for any vehicle. πŸ”‘

Ewch i'n gwefan am ragor o wybodaeth/
Visit our website for more information.
https://www.agtperformance.co.uk/security

Ar gyfer prisiau ac archebion cysylltwch Γ’ ni.
For pricing and booking, please get in touch. πŸ“² πŸ“¨

πŸ‘¨β€πŸ’» [email protected] | 01286 875 400 πŸ“²

Dyno power runs on our MAHA rolling road!➑️ Β£90 INC VAT for 2WD πŸ“ˆβ†”οΈ Β£108 INC VAT for 4WD/ AWD πŸ“ˆπŸ§β€β™‚οΈπŸ§πŸš—πŸš™ Group sessions al...
14/09/2026

Dyno power runs on our MAHA rolling road!

➑️ Β£90 INC VAT for 2WD πŸ“ˆ
↔️ Β£108 INC VAT for 4WD/ AWD πŸ“ˆ
πŸ§β€β™‚οΈπŸ§πŸš—πŸš™ Group sessions also available.

🟒 Os ydych chi eisiau darganfod a yw'ch car yn rhedeg yn gywir neu ddim yn sišr a yw wedi'i diwnio o'r blaen? Anfonwch neges uniongyrchol atom am fwy o wybodaeth!

🟒If you want a safe and secure way to find out if your car is running correctly or not sure if it's previously tuned? DM us for more info!

βœ… Power runs
βœ… Dyno tuning
βœ… ECU & TCU Remapping
βœ… Diagnostics and troubleshooting
+ MORE

πŸ‘¨β€πŸ’» [email protected] | 01286 875 400 πŸ“²

Golf R Mk7 EA888 Gen.3 IS38 in for ECU & TCU software upgrade with RacingLine Performance DM atom i ddarganfod beth allw...
07/09/2026

Golf R Mk7 EA888 Gen.3 IS38 in for ECU & TCU software upgrade with RacingLine Performance

DM atom i ddarganfod beth allwn ni ei wneud i chi heddiw!
DM us to find out what we can do for you today!

πŸ‘¨β€πŸ’» [email protected] | 01286 875 400 πŸ“²

VW PASSAT IN FOR CUSTOM STAGE 1 ECU REMAP.πŸ“ˆ141 BHP to 183.1 (+42.1) βœ…πŸ“ˆ319 Nm to 380.5 (+61.5) βœ…DM atom i ddarganfod beth...
01/09/2026

VW PASSAT IN FOR CUSTOM STAGE 1 ECU REMAP.

πŸ“ˆ141 BHP to 183.1 (+42.1) βœ…
πŸ“ˆ319 Nm to 380.5 (+61.5) βœ…

DM atom i ddarganfod beth allwn ni ei wneud i chi heddiw!

DM us to find out what we can do for you today!

πŸ‘¨β€πŸ’» [email protected] | 01286 875 400 πŸ“²

Seat Leon Cupra Mk3 - Stage 1 RacingLine Performance remap.🏴󠁧󠁒󠁷󠁬󠁳󠁿 Enillion trawiadol ar y Cupra gyda'r uwchraddiad medd...
27/08/2026

Seat Leon Cupra Mk3 - Stage 1 RacingLine Performance remap.

🏴󠁧󠁒󠁷󠁬󠁳󠁿 Enillion trawiadol ar y Cupra gyda'r uwchraddiad meddalwedd Racingline. A chit sbringiau iselu Racingline wedi'i osod yn y blaen a'r cefn.

πŸ“ˆ 303.7 BHP to 348.4 BHP (+44.7) βœ…
πŸ“ˆ 383.1 Nm to 460.2 Nm (+77.1) βœ…

βšͺ️ Impressive gains on the Cupra with Racingline software upgrade. And Racingline sports lowering spring kit fitted front and back.

🏴󠁧󠁒󠁷󠁬󠁳󠁿 'Ramair induction kit' wedi'i osod i gyd-fynd Ò hail-fap 'Stage 1' ar y Seat Cupra Mk3 hwn.Wedi'i ddylunio i ffi...
24/08/2026

🏴󠁧󠁒󠁷󠁬󠁳󠁿 'Ramair induction kit' wedi'i osod i gyd-fynd Ò hail-fap 'Stage 1' ar y Seat Cupra Mk3 hwn.

Wedi'i ddylunio i ffitio'n uniongyrchol i fowntio blwch aer ffatri safonol OEM. Bydd hefyd yn cynyddu'r llif aer i'r turbo, gan gynyddu sΕ΅n yr injan dros system cymeriant aer gyfyngol y ffatri.

🟒 Ramair Filters induction kit fitted to go with a Stage 1 remap on this Seat Cupra Mk3.

Designed to fit directly to the standard OEM factory air box mounting. Helping to increase the airflow into the turbo while increasing engine noise over the restrictive factory air intake system.

πŸ‘¨β€πŸ’» [email protected] | 01286 875 400

Address

Unit AH/Penygroes Ind Est
Caernarfon
LL546DB

Opening Hours

Monday 7:30am - 7:30pm
Tuesday 7:30am - 6pm
Wednesday 7:30am - 7:30pm
Thursday 7:30am - 7:30pm
Friday 7:30am - 7:30pm
Saturday 7:30am - 1pm

Telephone

+441286882299

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