AGT - Arwyn's Garage Tuning & Performance

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.

20/08/2026

🏴󠁧󠁒󠁷󠁬󠁳󠁿 Mini Cooper S i mewn am ail-fapio a thiwnio graddnodiad.

πŸ“ˆ 183.3 BHP to 227.5 BHP (+44.2)βœ…
πŸ“ˆ 244.2 Nm to 284.6 Nm of torque (+40.4)βœ…

🟒 Mini Cooper S in for a remap and calibration tuning.

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

🏴󠁧󠁒󠁷󠁬󠁳󠁿 Cawsom y Mini Cooper S hwn i mewn yn ddiweddar ar gyfer ail-fapio a thiwnio graddnodi!Rhai o'n gwasanaethau / So...
18/08/2026

🏴󠁧󠁒󠁷󠁬󠁳󠁿 Cawsom y Mini Cooper S hwn i mewn yn ddiweddar ar gyfer ail-fapio a thiwnio graddnodi!

Rhai o'n gwasanaethau / Some of our services:
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

🟒 Recently had this Mini Cooper S in for a remap and calibration tuning!

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

14/08/2026

🏴󠁧󠁒󠁷󠁬󠁳󠁿 Yr MST Cars MK1 ar ein peiriant Maha dyno, gyda Northampton yn ei diwnio o bell o'u pen nhw.

🟒 The MST MK1 on our Maha dyno with Northampton Motorsports remotely tuning from their end.

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

12/08/2026

Pwy nath gofyn am tacsi? πŸ˜…
πŸš• Who ordered a Taxi? πŸ˜…

🏴󠁧󠁒󠁷󠁬󠁳󠁿 Nid ar gyfer ceir perfformiad uchel yn unig y mae ail-fapio; os ydych chi'n cario llwyth trwm yn y car neu'n tynnu trelar neu garafan, bydd y trorym a'r bhp ychwanegol yn eich galluogi i yrru i fyny bryniau a pasio cerbydau arafach yn hawdd.

🟒 Remaps are not just for performance cars, if you carry heavy load in the car or pulling a trailer or caravan, with the increased torque & bhp you can go up hills and pass slower vehicles with ease.

Cysylltwch Γ’ ni i weld beth allwn ni ei wneud i'ch cerbyd.

Contact us to find out what we can do for your vehicle:

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

🏴󠁧󠁒󠁷󠁬󠁳󠁿 Beth sy'n helpu i amddiffyn eich cerbyd rhag cael ei ddwyn ac yn lleihau costau eich yswiriant?Mae uwchraddiad d...
11/08/2026

🏴󠁧󠁒󠁷󠁬󠁳󠁿 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!

🟒 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 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“¨

🏴󠁧󠁒󠁷󠁬󠁳󠁿 Pwy nath gofyn am tacsi? πŸ˜…Nid ar gyfer ceir perfformiad uchel yn unig y mae ail-fapio; os ydych chi'n cario llwy...
10/08/2026

🏴󠁧󠁒󠁷󠁬󠁳󠁿 Pwy nath gofyn am tacsi? πŸ˜…

Nid ar gyfer ceir perfformiad uchel yn unig y mae ail-fapio; os ydych chi'n cario llwyth trwm yn y car neu'n tynnu trelar neu garafan, bydd y trorym a'r bhp ychwanegol yn eich galluogi i yrru i fyny bryniau a pasio cerbydau arafach yn hawdd.

Cysylltwch Γ’ ni i weld beth allwn ni ei wneud i'ch cerbyd.

πŸš• Who ordered a Taxi? πŸ˜…

Remaps are not just for performance cars, if you carry heavy load in the car or pulling a trailer or caravan, with the increased torque & bhp you can go up hills and pass slower vehicles with ease.

Contact us to find out what we can do for your vehicle:

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

07/08/2026

ECU Stage 1 Custom Remap πŸ’»

🏴󠁧󠁒󠁷󠁬󠁳󠁿 Mini Cooper S Ryan yn gael ail-fapio pwrpasol ar ein Maha dyno yn gael rhediad pšer!

🟒 Mini Cooper S in for a custom remap on our Maha dyno with a power run!

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

ECU Stage 1 Custom Remap πŸ’»πŸ΄σ §σ ’σ ·σ ¬σ ³σ Ώ Yr wythnos diwethaf, daeth Ryan Γ’'i Mini Cooper S atom i gael ail-fapio pwrpasol i fir...
06/08/2026

ECU Stage 1 Custom Remap πŸ’»

🏴󠁧󠁒󠁷󠁬󠁳󠁿 Yr wythnos diwethaf, daeth Ryan Γ’'i Mini Cooper S atom i gael ail-fapio pwrpasol i fireinio ei gar rali ar gyfer rasio Pendragon sydd ar ddod yn y Mini Rally Challenge – a llwyddodd i ddod yn gyntaf yn ei ddosbarth yn y ras πŸ† Llongyfarchiadau, Ryan!

🟒Last week we had Ryan bring his Mini Cooper S in for a custom remap to fine tune his rally car for the upcoming Pendragon stages competing in the mini rally challenge, which he came 1st in Class in the race πŸ† Congralutations Ryan!

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

05/08/2026

🏴󠁧󠁒󠁷󠁬󠁳󠁿Sesiwn 'rolling road' i wirio allbwn pšer y car rali iau Skoda CITIGO hwn.

Dyno rolling road session to check the power output on this Skoda Citigo junior rally car.

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

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

Dyno rolling road session to check the power output on this track Skoda Citigo. ➑️ Β£90 INC VAT for 2WD πŸ“ˆβ†”οΈ Β£108 INC VAT ...
04/08/2026

Dyno rolling road session to check the power output on this track Skoda Citigo.

➑️ Β£90 INC VAT for 2WD πŸ“ˆ
↔️ Β£108 INC VAT for 4WD 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

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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