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Stage 1 ยท Petrol

Ford Mustang 2015-2018 5.0 V8 GT 410bhp remap figures

The Ford Mustang 5.0 V8 GT 410bhp (2015-2018) is a petrol 5.0L model making 410bhp and 530Nm as standard. After a Stage 1 ECU remap we expect 444bhp and 581Nm - up to 34bhp and 51Nm more than stock.

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Stage 1 remap figures

A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.

StockVanguard expectedExpected gain, up to
Power410 bhp444 bhp+34 bhp
Torque530 Nm581 Nm+51 Nm

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All maps at a glance

MapPowerTorqueExpected gain, up to
Stock410 bhp530 Nm
Stage 1Maximum software-only performance444 bhp581 Nm+34 bhp
+51 Nm
Stage 1 EcoPerformance with economy in mind436 bhp577 Nm+26 bhp
+47 Nm
Eco mapEconomy first433 bhp574 Nm+23 bhp
+44 Nm

Who is the Stage 1 map for?

  • Drivers who want a sharper throttle and a small, honest gain from software alone.
  • Owners who would rather keep the car standard in every other way.
  • Anyone who wants the fullest software-only map for this engine, accepting that the gain is modest without a turbocharger.

What this means for your Mustang

Naturally aspirated petrol engines have no boost to raise, so gains from software alone are more modest than on a turbocharged car and come from fuelling, ignition and throttle response.

Engine management is by a Continental EMS24XX unit. Newer ECUs often protect their software, so we read the exact unit and version on the car before confirming the figures on this page.

We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.

Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.

Figures reviewed 22 October 2026.

Stage 1 questions

How much power does the Stage 1 map give the Ford Mustang 5.0 V8 GT 410bhp?

We expect 444bhp and 581Nm against 410bhp and 530Nm as standard: up to +34bhp and +51Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.

Does a Stage 1 remap need any extra parts on the Ford Mustang 5.0 V8 GT 410bhp?

No. Stage 1 is a software-only change to the ECU on an otherwise standard car.

Is there a gentler map than Stage 1 for this engine?

Yes, two. Stage 1 Eco is performance with economy in mind: 436bhp and 577Nm expected. The Eco map is economy first: 433bhp and 574Nm. Both still sit above the standard 410bhp and 530Nm.

Do I need to tell my insurer about a remap?

Yes. A remap is a modification, so you should declare it to your insurer.