Stage 1: software only
A stage 1 remap is applied to a standard car with no hardware changes. It is the most common remap and is what the figures in the Remap Experts catalogue describe.
Stage 2: software plus supporting parts
Stage 2 adds hardware that helps the engine breathe, typically a high-flow air filter or intake, a sports exhaust or downpipe, and sometimes an upgraded intercooler. The remap is then written to suit those parts, usually for a larger gain than stage 1.
Stage 3: heavily modified engines
Stage 3 normally means a larger turbocharger and further engine or fuelling upgrades, with a bespoke map. It is specialist work, usually for performance or track use, and goes beyond a standard road remap.
Which stage is right?
Most drivers choose stage 1: no parts to buy, a noticeable improvement and the simplest process. Stage 2 and 3 only make sense if you are already fitting, or planning to fit, the hardware.
Typical parts that move you beyond stage 1
The parts below are the usual dividing line. Fitting any of them means a standard stage 1 file is no longer the right map, and the remap should be written for the new setup.
- High-flow air filter or sports intake
- Sports exhaust or downpipe (on road cars this must remain legal and keep emissions equipment in place)
- Upgraded intercooler
- Larger turbocharger or injectors (stage 3)
Reliability and the rest of the car
The higher you go, the more load the clutch, flywheel, gearbox and driveline carry, and the more important servicing becomes. A good tuner will tell you honestly when a stage is not worth it for your car, and will check the condition of the car before recommending one.
Whichever stage you choose, tell your insurer about the modification before you book.
Questions
Are your catalogue figures stage 1?
Yes. The standard and remapped figures shown on vehicle pages are indicative stage 1 results.
Can I go to stage 2 later?
Yes, if the supporting parts are fitted, the software can be updated to suit them.