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