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£150 off Stage 1, Stage 1+ and Stage 2

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ECU Tuning Wales
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Custom Tuning for All Modern Petrol and Diesel EFI Vehicles. Every Remap is a one, no off the shelf tuning!

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Rolling Road Tuning for Classic and Vintage Car and Vans. From Carbs to Injection Pumps we're happy to help

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Tuning for Motorsport and Standalone ECUs

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Our braked dyno is available for Power Runs, Quarter Mile Tests and available with full datalogging capabilities for daily hire.

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  EGR Delete: Common Issues
  
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All Our Services
DPF Diagnostics
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AdBlue & SCR: Common Issues
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EGR Delete: Common Issues
O2 Sensor Deletes
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Latest News

Audi TT 177HP > 254HP No "tested on another car" or "dyno developed" o...
BMW TCM Software Update Customer requested we flash their gearbox to t...
Adblue Light? DPF or EGR Issue? Come for a Free Code Scan and Assessme...
81HP Gain with our Custom Dyno Created Stage 1 tune for this Mini Copp...
𝗖𝗜𝗧𝗥𝗢𝗘𝗡 𝗥𝗘𝗟𝗔𝗬 𝗜𝗡 𝗟𝗜𝗠𝗣 𝗠𝗢𝗗𝗘 - 𝗕𝗔𝗗 𝗧𝗨𝗡𝗘 𝗘�...
VW Caddy - Custom Dyno Stage 1 £100 Off - Never a better time to get a...
Just for fun, whom can tell me what make and model of car this engine...
𝗠𝗜𝗡𝗜 𝗥𝟱𝟲 𝗖𝗢𝗢𝗣𝗘𝗥 𝗦 • 𝗦𝗧𝗔𝗚𝗘 𝟯 • 𝟯𝟬𝟱𝗛𝗣 𝗥𝗔𝗖𝗘...
𝗠𝗘𝗥𝗖𝗘𝗗𝗘𝗦 𝗖𝟰𝟯 𝗔𝗠𝗚 • 𝟰𝟭𝟵𝗛𝗣 Not bad at all if we do sa...
Porsche Custom Stage 1 and Adblue/SCR Off Why settle for an off the sh...

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Technical Resources

Technical Resources for Tuners
DTC Error Codes
HP Calculators
Pressure Calculators
MAF Tester
FRF and SGO to BIN Converter
File Service

Common Issues

BMW N55 Issues
VAG 2.0 TFSI Issues
AdBlue & SCR Issues
EGR Delete Issues

Latest Articles

Who Actually Writes Your OTS Remap?
Do BM3 OTS Maps Really Outperform Custom Tunes?
Bosch MD1CS003 tuning protection: locked and unlocked ECU numbers explained
The Benefits of Upgrading an Intercooler on a Diesel Engine
Tuned in Rhondda or South Wales and the Car Doesn't Feel Right?
VW CAY 1.6 TDI Engines
Why VW GDI Injectors Go Bad
Why is Llandow Tuning the Best Tuning Centre in Wales?
DPF Tuning, Exhaust Temperatures and Why Bad Diesel Mapping Destroys Engines
Bridgend Tuning

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Llandow Tuning specialises in vehicle modifications. Our work often involves altering a vehicle from its factory specifications, typically for motorsport or fast road use.
All modifications and tuning are carried out at the owner's risk. Customers should fully understand and accept these risks before work begins.
Dyno and rolling road use is at the owner's risk. Any damage caused to the dyno, dyno cell, or due to fluid spills must be paid for before the vehicle is released.
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