hi guys i have recently bought a hard pipe kit for my 32 gtr and after installation my car is idleing rough and sometimes wont start on first crank. the only thing different is that the pipe which comes from the blow off valves and used to go to the intake is now blocked off and the blow off valves are now venting to the atmosphere. can anyone help also noticed boost comes on a little later now as well car is running power fc, injectors, fuel reg, cams, external pumps ect.