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⚠️ Throttle tweak + NOx codes deleted… And that’s being sold as a remap 👀



This Audi A7 came in for a remap check.


Customer had already had it “mapped” elsewhere —

but straight away, something didn’t feel right.


The symptoms


  • White smoke under load

  • No real power

  • Felt sharp on the pedal… but didn’t pull


👉 Classic signs of a poor setup


What we found




Once we checked the file, it was clear:


  • Only throttle response had been changed

  • NOx fault codes had been deleted

  • No real performance tuning applied

  • EGR not handled properly

  • DPF side not set up correctly

  • ❗ Post injection still active despite a “DPF solution”


👉 Fuel still being injected when it shouldn’t be

👉 That’s where your smoke comes from


📈 What it should be


From factory, this engine sits around:


  • 218HP

  • 500Nm


A proper Stage 1 setup will typically achieve:


  • ~310HP

  • ~700Nm


👉 +92HP / +200Nm

The reality


Before we touched it:


  • No real power increase

  • No proper torque gain

  • Smoke under load

  • Driving didn’t match what it should be


👉 It felt “mapped”…

👉 But it wasn’t


What we did

We stripped everything back and started again:


  • Removed the old file completely

  • Built a proper Stage 1 setup

  • Corrected EGR behaviour

  • Fixed DPF strategy properly

  • Disabled incorrect post injection


No shortcuts. Done properly.


The result


Before:


  • White smoke

  • No power

  • Didn’t drive right


After:


  • ✔ Clean running

  • ✔ Proper power

  • ✔ Drives how it should


⚠️ Honest note


Because of how badly the original file was done,

the car may need minor adjustments down the line.


That’s normal when fixing a poor job —

you’re correcting someone else’s work, not starting fresh.


⚠️ What this job shows (what to look out for)



This Audi is exactly what we see every week.


🔧 Generic / copy-paste files



  • Same file used across multiple cars

  • Not built for your vehicle



👉 Works… but never right


💻 “We know everything” tuners


  • No proper checks

  • No real testing


👉 Hit or miss — usually miss


⚠️ The “flash and dash”


  • Mobile

  • Comes to your house

  • Quick job on the driveway


👻 When it goes wrong…


“I’ll be back to sort it…”


👉 Then gone.


No support

No fix

No comeback


❗ What we usually see after


  • DPF “mapped out” but still blocked

  • Smoke issues

  • Warning lights

  • Poor running


👉 Exactly like this Audi A7


💸 The cheap remap


  • £100 jobs

  • Minimal time

  • No proper setup



👉 Ends up costing more when it has to be fixed


💬 The takeaway

A proper remap:


  • Isn’t just throttle response

  • Doesn’t rely on deleting fault codes

  • Doesn’t leave systems half active



👉 It’s built properly — or not at all



📍 Prestige Performance Group – Newtownards



We don’t just remap cars —

we fix the ones that have already been done wrong.


If your car doesn’t feel right…

there’s usually a reason.


Mapped on your driveway… fixed in our workshop.

📩 Get it checked properly

 
 
 

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