I have FVD stage 4 (575) flashed chip . It ran awesome in my car w/ ki6 /24 hybrids. Great power and smooth ,no CELs The only reason It is available is because i went to a custom tune aT EPL in Connecticut.
They can install it in you car or as an alternative you can send them your ECU . quick turnaround
Tony said 1 or 2 hours charge. to do it. You can dyno your car there as well. Great shop.

$425
Elliot