Guides
Resources
How tuning actually works once the car leaves the dyno: the interface, remote revisions, datalogging from your phone, fuel maps and support at the track. Written by the people who do it.
Remote tuning
- Change your tune without bringing the car backHow a remote revision works on a DEFI tune: log the car, send it, and flash the revised file from your phone — new parts, new fuel or a fix, no trailer.Read →
- How to datalog from your phone and send it to usStep by step: record a datalog in HP Tuners’ TDN app, upload it to your tuner, read trouble codes, and what kind of drive makes a useful log.Read →
Support
- What a datalog can find — remote diagnosisSensors dropping out, cooling faults, a car running on borrowed time: what a calibrator can see in a log from anywhere, and when the car has to come in.Read →
- Track support: your tuner on callA prepaid bank of a calibrator’s time for a race weekend or a season: logs read from the pits, faults found, revisions sent back where they are safe.Read →
More from the shop
- The RTD4, and why every DEFI tune arrives on oneHow it works
- Credits, licensing, and why it is irreversibleHow it works
- Is my ECU locked?How it works
- Revisions and aftercareHow it works
- How a dyno number gets inflated — five methods, and how to checkMethodology
- The no-tune myth: which parts genuinely need calibrationSupporting mods
- Is my ECU locked? A plain guide by platformECU unlocking
- Why every DEFI tune ships on an RTD4Buying