Overboost Problems

[bedlam]

Hi all

I have a toyota soarer 2.5tt, and i had a custom exuast fitted the other day, now i knew this would affect the amount off boost on the car, but it has just went mad.

The car has a bleed valve fitted, and the car had a superchip fitted when we got it, which is just acting as a FCD, i also fitted a restrictor to allow me more control of the boost.

I have also fitted water injection,.

Now the main problem is that after getting the new exhaust fitted which is now 3" then down to 2 1/1" at the Y, the car has created to much boost.

Is there a way i can control this as i have removed the restrictor and closed the bleed valve, but the car is still running 20+psi.

Thanks in advance

Andy

PS

This has hybrid turbos fitted which do not have the ceramic wheels