KEIHIN R18A2 Chiptuning
The KEIHIN R18A2 is used in Car vehicles from makes such as HONDA. Our library holds verified solution files for this ECU family.

R18A2 chip tuning and remap solutions
The Keihin R18A2 is an engine control unit used in cars from makes such as Honda. Prime Chiptuning always builds R18A2 files from the original read of the vehicle; generic files are not used.
Solutions offered for this ECU family include Stage 1 Remap, Pop & Bang and Stage 2 Remap. Which ones apply to your vehicle depends on the exact ECU variant, software version and engine; we check this from the read file before the work starts.
How a R18A2 remap is done
- The R18A2 is read by OBD, bench or boot depending on the variant, and the original software is backed up.
- The original file is modified for the vehicle, engine and requested solution; the checksum is corrected.
- The file is written, fault codes are checked and the vehicle is road tested.
- The original backup is kept, so the vehicle can be returned to factory software at any time.
Why Prime Chiptuning for R18A2
Our service points tune the R18A2 for each vehicle individually, with support after delivery. Workshops with their own tools can order R18A2 files on the ECU Prime file platform.
Are you a tuner or dealer?
Verified Stage 1, DPF, EGR and AdBlue files for the KEIHIN R18A2 are available on the EcuPrime file service: upload your original file and compatibility is measured in seconds.
KEIHIN R18A2 files on EcuPrime →Notify me when a new KEIHIN R18A2 solution is released
We email you when an unlock, a new operation or an on-site solution is added for this ECU family. No advertising; technical announcements only.