I have a 7mgte with 3in exhaust and 60-1 ct26 and avcr. With the avcr off it makes 10is psi by 3k or a lil before. But by 4.5k boost creeps up to 1.2 bar (17 psi). I know this isn't a common problem with the ct26 so I am going to port the wastgate. Wondering if anybody has done this or has had luck with this problem. I dont want to go external wg. Thank you