my tacho doesn't work, but my guess it'd be around 5 grand that it actually has some juice, after that, it's shit off a shovel but i'm just annoyed that it doesn't have the early turbo response (sounds and feels NA if i'm driving normally and tamed)
a good example is when i'm at the engine giving it some revs from the throttle body and i don't get the turbo fludder until like 6 grand, where as my mates setup (only difference is that it has a microtech) is so bouncy and the turbo resonds on the slightest of throttle ?!