here's my final numbers (I have the turbo pipe) 3000 -10 -10 -5 and 5000 -10 -5 0 psi 20 33 46. I've got it running very good doesn't load up anywhere now except when the engine and pipe are still cold. My egts never went over 1160 however I haven't had a chance to hold it open for more than 20 sec's on a hill yet.