KEIHIN 37820-RAH Chiptuning
The KEIHIN 37820-RAH is used in Car vehicles from makes such as HONDA. Our library holds verified solution files for this ECU family.
Available operations
Stage 1 Remap
Software that optimises the engine's power and torque maps within safe limits.
View →Pop & Bang
Software that creates exhaust crackle on lift-off.
View →Stage 2 Remap
Advanced software matched to hardware upgrades such as a sport exhaust or induction kit.
View →Speed Limiter (Vmax) Removal
Removing the factory top-speed limiter from the software.
View →37820-RAH chip tuning and remap solutions
The Keihin 37820-RAH is an engine control unit used in cars from makes such as Honda. Prime Chiptuning always builds 37820-RAH 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, Stage 2 Remap and Speed Limiter (Vmax) Removal. 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 37820-RAH remap is done
- The 37820-RAH 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 37820-RAH
Our service points tune the 37820-RAH for each vehicle individually, with support after delivery. Workshops with their own tools can order 37820-RAH files on the ECU Prime file platform.
Are you a tuner or dealer?
Verified Stage 1, DPF, EGR and AdBlue files for the KEIHIN 37820-RAH are available on the EcuPrime file service: upload your original file and compatibility is measured in seconds.
KEIHIN 37820-RAH files on EcuPrime →Notify me when a new KEIHIN 37820-RAH 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.