I stumbled across this today,TryForce Power Effects ECU. $884 USD. I'm going to send an email to inquire whether it is USDM compatible and the full function of it.



Description:
This setting is to maximize a dense engine control technology of Honda.
　High response specifications corresponding to the circuit from the street regardless of the significant power-up. 　● Reburimitto basic settings: (can be set depending on engine specifications) 7000rpm 　no change: ● VTEC switching rotation speed 　● fuel injection quantity: optimizing correction 　● ignition: optimizing correction 　● knock gain optimization: 　● electronic control throttle: optimization 　● immobilizer: Supported 　● Speed ​​limiter: 300 km / h 　(90 ｰ C. Normal ON 93 ℃ ｷ OFF) ON 85 ℃ ｷ OFF 80 ℃: ● electric fan operating temperature change 　　　any settings are possible depending on the specifications of the cold regions, such as. 　※ maximum output difference at the dyno pack in GE8-6MT is the normal ratio maximum 10ps improvement.

Tryforce company トライフォースカンパニー　【フィット】コンピュータ　パワーエフェクトコンピュータフルスペックECU

 

Hope it is usdm compatible. Keep us posted!

 

They still haven't responded. Maybe I will try again.

It's not a new ECU. You send them your ECU and make a list of your mods and usage (DD, Track car...). They program the existing ECU; so I would think the software they use should be compatible.

 

Would be nice to remove speed limiter, increase redline by 3-400 rpm, decrease fan temp switch point operation to maintain under 200*F, allow for slightly more ignition timing, and lower vtec crossover by about 200-300 rpms

Also would not hurt to allow generic 2.5inch MAF tube!

 

^^^^^^
that!