Software 98631000 Hitachi Undefined
14 master projects carry this software number, 14 with a modified version. Upload your read to have the tune transferred into your own file, or buy the file exactly as we hold it by software number. Modified files from $275, original (stock) files from $75 AUD. Trade accounts see their own pricing after log in.
Fitted to
Nissan 350Z 3.5 V6 DOHC ×4
Nissan 350Z ×2
Infiniti G35 3.5 V6 ×2
Nissan Z350 3.5 L
Nissan 370Z
Nissan 350Z 3.5i
Nissan Z350 3.5L
ECU
Hitachi / Denso / hitachi
Undefined / EFI 705826N / EFI SH705821N
Isuzu
Hardware / part numbers
02
0871
1
Undefined
Read with
Undefined
Modifications available
- Stage 1 ×5
- Stage 2 / 3 ×1
- Speed limiter (Vmax) ×1
- DTC off ×1
- Lambda / O2 / cat off ×5
- Pops & bangs ×8
- Other modification ×3
Have the read? Upload it.
Upload your read →
Your own file comes back with the modification built in, checked for a 100% match before it's offered.
Can't read the ECU? Buy by software number.
See files & prices →
The stock or modified file exactly as we hold it, to write with your tool. Make sure your ECU carries
98631000 and the same hardware number.Vehicle pages: Infiniti G35 · Nissan 350Z · Nissan 370Z · Nissan Z350
Files are supplied for off-road / motorsport use; checksums are corrected by your flashing tool on write. Last project update 2026-08-04.