Supported Engines
Here is a list of all the engines we currently support along with the gains.
A good rule of thumb for gains is-
10% gain should be noticeable.
25% gain will be very noticeable.
50% gain or more will feel like a new engine (prop tuning required)
** Please note ** Some engines models are not supported through the OEFI flash cable and the ECU must be sent in to headquarters when indicated.
Suzuki Outboard DF-A Models
DFA and DFB models will flash through OEFI flash cable. Any OEFI dealer will be able to flash on site.
DF9.9B 15hp gain
DF15A 10hp gain
DF20A 5hp gain
DF25A 10hp gain
DF30A 5hp gain
DF40A 35hp gain
DF50A 25hp gain
DF60A 15hp gain
DF70A 30hp gain
DF75A 25hp gain
DF90A 10hp gain
DF115A/B 25hp gain
DF140A/B 10hp gain
DF150A 25hp gain
DF175A 25hp gain
DF200A 25hp gain
DF225A 25hp gain
DF250A 25hp gain
DF250AP 75hp gain
DF300AP 25hp gain
DF350A 35hp gain
Suzuki Outboard DF and DFSS Models
These ECUs must be sent to headquarters to get flashed
DF40 15hp gain
DF60 15hp gain
DF90 20hp gain
DF115 25hp gain
DF140 10hp gain
DF150 25hp gain
DF175 25hp gain
DF200 25hp gain
DF225 50hp gain
DF250/SS 25hp gain
Yamaha Outboard
Most Yamaha engines can be flashed through OEFI flash cable. The early F150 63p-10 must be sent to headquarters
F20 18up 5hp gain
F25 18up 5hp gain
F50 05up 25hp gain must remove restrictor
F60 05up 15hp gain
F70 10up 10-15hp gain
F75A 05up 10hp gain
F75B 45hp gain
F90A 05up 10hp gain
F90B 17up 30hp gain
VF90SHO 30hp gain
F115B 17up 20hp gain
VF115SHO 20hp gain
F150 06-09 15hp gain
F150 10up 25hp gain
VF150SHO 13up 75hp gain
VF175SHO 13up 50hp gain
F200 2.8L 25hp gain
F200 3.3L 25hp gain
F225 3.3L 25hp gain
F250 3.3L 25hp gain
ALL 4.2L F and VF models will make 325hp
F300 5.3L V8 125hp gain
F350 5.3L V8 75hp gain
XTO425 - coming soon
Tohatsu Outboard
MFS9.9-60 Requires V3 OEFI flash cable and will not flash through OEFI Master Cable
MFS9.9 +15hp
MFS15 +10hp
MFS20 +5hp
MFS25 +10hp est coming soon
MFS30 +5hp est coming soon
MFS40 +15hp est coming soon
MFS50 +5hp est coming soon
MFS60 +10hp est coming soon
MFS75 70hp gain
MFS90 55hp gain
MFS115 30hp gain
MFS140 10hp gain
Larger models coming soon - Estimated ETA after mid sized complete
Honda Outboard
Coming soon - Estimated ETA spring 2025
How ECU Licensing Works
When you purchase an ECU license you have the ability to change the programming to any tune we make or back to stock at any time. Each ECU requires 1 license to be able to flash. If you are sending it in return shipping is free for the first flash after that you will be charged actual shipping charges.
The flash cable if purchased allows you to do this where you are without the need to ship the ECU in to our headquarters. Some engines are not supported through the flash cable. See the list on this.