I will sometimes get a boost cut at higher speeds usually in 5th or 6th gear. I only have the random misfires at idle. I have gone through and check all my air hoses and all of them are secure and no holes in any off them. The hose going from the air box to the turbo is aftermarket and the charge pipe from the turbo to the intercooler is also aftermarket. I am also running a catch can. Any ideas?