As soon as you start looking into engine remapping, the terms Stage 1 and Stage 2 come up everywhere. But what do they actually mean? What gains can you realistically expect from each level? And, more importantly, which one is right for your car? This guide explains the difference in plain terms.
What does a remap stage mean?
"Stages" are tuning levels used across the remapping industry. Each stage describes how far the work goes and how much of the car is modified, from the simplest software-only job to more involved builds.
The rule of thumb is straightforward: the higher the stage, the bigger the gains, but the more modifications (and money) are involved.
A stage does not define a target power figure, it defines a level of work. A Stage 1 remap on a 150 hp 2.0 TDI will not produce the same numbers as a Stage 1 on a 300 hp twin-turbo 3.0 V6.
Stage 1 remap: software only
Stage 1 is the entry level of remapping. It is purely a software change to the engine control unit (ECU), with no mechanical modifications at all. Every part on the car stays exactly as it left the factory.
It is by far the most popular option because it offers an excellent balance between gains and cost, and nothing physical has to be changed on the car.
Typical power gain on a turbocharged engine, diesel or petrol
Indicative price range, depending on the car and the tuner
Typical time on the car (reading the original map and writing the new one)
- No mechanical modifications needed
- Fully reversible (the original map can be restored)
- Excellent value for money
- Reliability preserved when carried out by a professional
- Gains limited by the standard hardware
- Not well suited to naturally aspirated engines (small gains)
Stage 2 remap: software plus hardware upgrades
Stage 2 goes further. On top of the software remap, it includes mechanical upgrades that help the engine breathe more freely and cope with the extra power.
The most common upgrades are a replacement downpipe (often with a sports catalyst), a performance intake or high-flow air filter and, in some cases, an uprated intercooler.
Power gain over standard, made possible by the upgraded parts
Indicative total budget (remap, parts and labour)
Typical workshop time including fitting the parts
- Significantly bigger gains than Stage 1
- Better airflow on the intake and exhaust side
- Sportier engine sound (downpipe)
- Requires buying additional parts
- Budget two to four times higher than Stage 1
- Can affect road legality, emissions compliance and your MOT
Stage 1 vs Stage 2 remap: side-by-side comparison
Stage 1
- Software remap only
- No parts to change
- Indicative budget: £250 to £700
- +20 to 35% power
- Quick job (around an hour)
- Easy to reverse
Stage 2
- Remap plus mechanical parts
- Downpipe, performance intake, intercooler
- Indicative budget: £1,300 to £2,600
- +35 to 50% power
- Half a day in the workshop
- Harder to return to standard
Which remap stage should you choose?
The right choice depends on what you want from the car, your budget and how you actually use it day to day.
Choose Stage 1 if you want a noticeable improvement in everyday driving without touching the mechanical side, on a controlled budget. It is the sensible option for the vast majority of drivers.
Choose Stage 2 if you are after maximum performance and are prepared to invest in supporting parts. It is the route enthusiasts take when they want to go further.
Start with Stage 1 to discover what your engine can do. You can always move up to Stage 2 later. Use the ChiptuneMAP simulator to estimate the gains for your car, then find a remapping specialist near you.
Chiptune Team
Specialists in digital solutions for automotive engine remapping.