Stage 1 vs Stage 2 Remap – Which Is Right for You?

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July 3, 2025

Stage 1 vs Stage 2 Remap – Which Is Right for You?

Want more punch from your diesel or turbo-petrol but not sure how far to go? This guide pits Stage 1 against Stage 2 so you can choose the right path for power, budget and daily drive comfort.

Power & torque gains at a glance

Stage 1 remap Stage 2 remap
Typical BHP increase +20–35 % +35–60 %
Typical torque increase +25–40 % +40–70 %
0-60 mph improvement* -0.8 s -1.4 s
Fuel economy change* Often +5 % -5 % to flat

*Real-world average on turbo diesels. Figures vary by model.

What you need before each stage

Stage 1: software only

  • Healthy engine with up-to-date service history
  • Clean air filter & fresh oil
  • No warning lights on dash

Stage 2: hardware + software

  • High-flow downpipe or sports cat
  • Free-flow intake and upgraded intercooler
  • Stronger clutch (manual) or TCU tune (DSG)
  • Wideband boost and AFR logging recommended

Proof on the rollers

Dyno graph Stage 1 remap
Stage 1 MK7 Golf GTD: 184 → 225 BHP, 380 → 460 Nm.
Dyno graph Stage 2 remap
Stage 2 MK7 Golf GTD: 225 → 280 BHP, 460 → 520 Nm with downpipe & intercooler.

How much does each stage cost?

Item Stage 1 Stage 2
ECU remap (software) £250 Included
Required hardware N/A £600–£1 200*
Fitting & setup N/A £300–£500
Total ballpark £250 £1 200–£1 700

*Depends on turbo size and exhaust spec.

Want instant answers? Pop your reg in our remap calculator to see Stage 1 and Stage 2 gains for your exact car.

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