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South Wales Tuning Specialist

ECU Remapping
Across South Wales

Unlocking your vehicle’s true potential.

Expert ECU & TCU remapping, car coding, key programming, alarms, trackers and security — with a MAHA 4-wheel dyno on site.

Covering Ammanford · Neath Port Talbot · Swansea · Carmarthen · Brecon & surrounding areas

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Lifetime WarrantyAll software work
Thatcham ApprovedCertified installs
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MAHA 4WD DynoOn-site testing
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5,000+ RemappedSouth Wales
Vehicle Tuning Calculator

Vehicle Tuning Calculator

Select your vehicle below to see estimated Stage 1 and Stage 2 power and torque gains from a remap.

Vehicle Tuning Calculator
Enter your registration
GB
Choose a stage to compare against standard
Stage 1 Tune
Compared against standard output
Power
-hp
Standard: - hp
+- hp / -%
Torque
-Nm
Standard: - Nm
+- Nm / -%
Stage 2 Tune
Compared against standard output
Power
-hp
Standard: - hp
+- hp / -%
Torque
-Nm
Standard: - Nm
+- Nm / -%
Stage 3 Tune
Requires supporting hardware
Power
-hp
Standard: - hp
+- hp / -%
Torque
-Nm
Standard: - Nm
+- Nm / -%
Economy Tune
Tuned for fuel economy, not peak power
Power
-hp
Standard: - hp
- hp / -%
Torque
-Nm
Standard: - Nm
- Nm / -%
Vehicle Performance Chart

Power and torque figures are estimated and may vary with vehicle condition, fuel quality and modifications.

Available Solutions
Control Units
Pricing

Our Services

Our Services

Click any card to find out more. From performance upgrades to vehicle security — all backed by our specialists.

ECU & TCU Remapping

Performance and economy tuning for cars, vans, HGVs, motorbikes, ATVs and marine engines. Lifetime software warranty and original map backup on every job.

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Coding, Diagnostics & Retrofitting

Unlock factory-hidden features and reprogram modules — without altering core software.

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Alarms & Immobilisers

Official Pandora and CAN-Phantom dealer. Thatcham-approved, insurance-recognised installs.

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Vehicle Trackers

Meta Trak & SmarTrack GPS trackers. Real-time tracking, instant alerts, nationwide coverage.

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Key Programming

Transponder cutting, remote fobs, keyless entry — all makes and models at competitive prices.

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Van Locks

Deadlocks, slam locks and hook locks — professionally fitted to protect your tools and livelihood.

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Audio Systems

Apple CarPlay, Android Auto, speaker upgrades and sound-deadening — clean OEM finish guaranteed.

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Dash Cameras

Hardwired front, rear and interior cameras with parking mode and concealed cable runs.

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MAHA 4-Wheel Dyno

Professional power and torque testing on our MAHA rolling road — AWD, FWD and RWD capable.

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Other Services

Airbag reset, ECU cloning, module programming, mileage calibration and much more.

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Why EC Performance

Performance you can trust

Built on doing things properly — not just chasing numbers, but making your vehicle safer, more efficient and more enjoyable.

01

Lifetime Software Warranty

Every remap and software modification comes with a lifetime warranty. Any software malfunction is covered — giving you complete peace of mind.

02

Responsible Tuning

We prioritise driveability, long-term engine health and safety alongside performance — every single time.

03

Certified & Accredited

Official dealers for Pandora, CAN-Phantom, Meta Trak and SmarTrack. All security installs use Thatcham-approved products.

04

MAHA On-Site Dyno

One of the only tuners in South Wales with an in-house MAHA 4-wheel rolling road. Verify your gains with real figures.

05

30-Day Money-Back Guarantee

Not happy with the results? Let us know within 30 days and we’ll put it right or give you a full refund — no quibble.

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Refer a Friend, You Both Get £20 Off

Know someone whose car needs a remap, coding work or security fitted? Send them our way — they get £20 off their first booking, and you get £20 off your next visit.

Just have them mention your name when they book. One reward per referral.

Refer & Save
Customer Reviews

Trusted Across South Wales

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Recent Work

Recent Work In Action

Real jobs, real cars, on our own MAHA dyno.

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Common Questions

Questions Answered

Everything you need to know before booking. Still not sure? Give us a call.

Most standard remaps take 1–2 hours. Complex Stage 2 or custom tunes may take a little longer. We give you a clear time estimate at booking.

Remapping under manufacturer warranty may affect it — we advise checking with your manufacturer first. Once expired, no concern. We always back up your original map.

All remapping, coding and security work is carried out at our Ammanford workshop, which also has the on-site MAHA 4WD dyno for jobs that need it.

Yes, when done correctly. We prioritise engine health and driveability alongside performance. Your original map is always backed up and can be restored free of charge under our lifetime warranty.

Stage 1 is software-only — no hardware modifications required, pure bolt-on gains. Stage 2 pairs software with hardware upgrades (exhaust, intercooler etc.) for larger results. Use the Tuning Calculator to see figures for your vehicle.

Any performance modification should be declared to your insurer — failure to do so could invalidate your policy. Many insurers accept remaps with little or no premium increase. Economy remaps can sometimes reduce premiums.

Absolutely. We back up your original ECU map before we begin. You can request a full return to factory settings free of charge at any time under our lifetime software warranty.

Every job is backed by our 30-day money-back guarantee. If you’re not happy, let us know within 30 days and we’ll put it right or give you a full refund — no quibble.

Our workshop is in Ammanford (SA18 1PA). We regularly welcome customers from Swansea, Neath Port Talbot, Carmarthen, Brecon and surrounding areas. Not sure? Call or message us.

Book a Service

Book online and pick a time that suits you. All work is carried out at our Ammanford workshop, where the MAHA 4-wheel dyno is — customers travel to us from right across South Wales.

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AddressUnit 1F, Cwmgors Industrial Estate, Park Howard Rd, Gwaun-Cae-Gurwen, Ammanford, SA18 1PA
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Make a Booking

Book online in a couple of minutes — pick your service, choose a time slot, and we'll see you then.

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Prefer to talk it through first? Call us on 01792 732 062 or email customerservice@ecperformance.wales.

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