Ok, I need the help of all you gurus! 07.5 2500 G56 deleted w/ 5" TBE and a MiniMAXX 202k miles. Little bit of background...truck runs and drive normal, no unusual smoking or hazing, EGTs are consistenet and the DP reading on the MiniMAXX doesn't climb above 15 PSI. I've been starting to hear one loud "pop" coming from the turbo area. It started making this noise on the highway with the engine at operating temp and the cruise set at 70. It would only happen about once a week or so, but it's progressively becoming more frequent. It's now happening about once a trip and now it's not just at cruising speed. It'll still only pop once and be fine, but it's got me puzzled. Yesterday I rechecked my turbo shaft play and manifold gaskets and noticed cyl 1, 2, and 5 appear to have gaskets starting to separate. So on to the my question, other than the fact it has 202k miles, what could realistically cause exhaust gaskets to separate and start leaking?