Im having a problem with my SHO I dunno what the **** is going on rant but my car Will bog like it wants to stall. Then it will drive fine like it should. Off and on it will change up from running good to bogging.Its also running rich Ive had one cat get clocked and killed then got a whole Y pipe swapped out and the same thing happened to same cat on the second Y pipe.Today I had one cat changed out to a brand new one and the cat closet to the engine has started to crack just like the cat furthest from the engine but it was welded. So now my cats are fine but now I have to figure out whats wrong with it. I have changed out the O2 sensors swaped a MAF. If u have any info please let me now immedeitly Thanks Derek