I was thinking of getting one to punish it!!
My £900 OEM KKK K04-001 core has been ragged to the limits during deveopment for the last 13months.... I wonder if the £250 ebay kit could take it on my personal map on my AUM?
I have mapped a few for customers cars with ebay 001 and k03s turbos , which I dont push as hard as i would mine, but as far as i know they are all runnig strong still.
The ebay ones need a lot of time on the N75 boost control mapping as they will easy spike to 30psi+ generic on a stage1 or 2 map. The n75 duty need to be reduced by around 35% in the mid range to just stop the spike, then i had on with the actuator stuck shut and one which the flapper did not seal.
One customer is running an MBC and now peaking 25psi, since last summer..