hello we have a problem with i client. We have make the car with stage1 but when you give you more gas problem comes. this is the mail what the client sent it to us. 

Dear reader,
A few weeks ago you tuned my BMW E61 523i stage 1 and at first it was ok in the lower revs when I went for a test drive.
But I noticed that he had content / dips when pulling through around 2500 rpm and 4500 rpm so did not run smoothly.
I've checked everything until today I've fash the decu back to the original firmware.
I have a 523i with a 3.0 manifold with 2 disa valves (normally it only has 1) it may be that your software disables 1 disa because of the 523i After I have put the firmware back, it continues and tested the 2 disa valves on the live monitor and they work.
Do you possibly have a solution for the tunnig for the 525i that does have 2 disa valves.

What can you make with this ?