MT/ SMT Threshold Modifier?

[_Ro]

I believe the code "Instant Miniturbo/Drift" has the values you want.
Instant MT + Stand-Still MT - NTSC-US]

048B1400 00000000
048B1404 00000000
048B1408 00010000
048B1278 00010000

No because I don't want to make it instant, I just want to make the values smaller.

I know. I just meant that these addresses might have the values you want to modify, or around this global area.