Search found 1 match
- Wed May 07, 2025 12:41 am
- Forum: General Motors
- Topic: MEFI4B with TunerPro RT
- Replies: 1
- Views: 13907
Re: MEFI4B with TunerPro RT
Hi Mike, it's possible to use TunerPro RT with MEFI 4B, but you need the correct .xdf (definition) files specifically tailored for the MEFI 4B ECU. The files provided with MefiBurn are primarily for flashing and diagnostics, not detailed tuning like in TunerPro. You’ll need to either source a compat...