Single turbo Upgrading MSD80 to MSD81

Abacus38

Lieutenant
Nov 2, 2016
643
385
0
34
Tampa/Orlando, FL
Ride
2007 Ti Ag 335i
Long story short the mosfets blew for a second time so I said bump it I'll upgrade to the MSD81. The only question I have is how does the ECU mapping works. Since my single Turbo tune is I8AOS and the MSD81 is IJE0S does that mean my car needs to retune with a IJE0S tune?
 

Josh_G

Private
Aug 29, 2018
30
20
0
Ride
N54 335i RHD
simple answer is yes.

when i swapped ECUs from 80 to 81 i contacted my tuner (ken @ Wedge performance) and he sent me out the new version of the tune for IJE0S
 

martymil

Major General
Sep 6, 2017
3,331
1,906
0
Down Under
Ride
S65 1m
First things we done is upgrade to an MSD81 before starting to mod, the MSD80 is a ticking time bomb as a mate has found out last week.
 

syn909

Specialist
Jun 27, 2018
64
22
0
Ride
'07 335i
First things we done is upgrade to an MSD81 before starting to mod, the MSD80 is a ticking time bomb as a mate has found out last week.


First upgrade I did as well! Was hell because MHD kept changing the VIN thankfully with my feedback they fixed the bug! With swapped DME's