+Doc+

I had my ECU reset whilst I had my Blist bung out, i then put the bung back in and i have found the boost is not peaking high enough, took the bung out last night and the boost "seems" (didnt get chance to hammer it much) to be back to normal.
Would this change in back pressure make soooo much difference???
Doc

R.B

Yes the only differenc is my windows were shaking