Speed six de-throttle chip

[JENKS_D]

I read somewhere on the Tuscan threads that a splutter at 6000rpm is cured with a new management chip. I have this symptom on my Cerbera and wanted to ask if anyone has had this done, does it do the trick and how much did you have to pay for the new chip. I have just had it serviced and the camshaft is ok so shouldn't be that. Thanks for any help..