Ok, in the near future I'll be picking up my 18X10 and 18X9 black DD rims from AM. I know I'll have to change the ECU so my speedo isn't off. I was messing with it the other day, and notice there is really no other options than to load custom tunes from my Brenspeed SCT tuner. I thought we'd still have the options to make changes for stuff like gears, rims, and stuff like that. Do I have to get Brenspeed to change that?

 

I have an X3 tuner i got through bama, and when i go to load a tune it gives me the option to change options, such as spark, tire size, etc

 

Yeah, all X3 are the same, you have to reload the tune to change options like tire size. Before you load the tune the programmer will ask you if you want to change any options. You can't change options by themselves.

 

Oh, that makes sense, so basically select the tune that's on it already and mess with it from there.

 

If you maintain the same tire diameter you don't have to change anything.