Ok my old cat had a huge hole in the side the entire seam broke apart... I bought my new high performance cat and have it installed.... Im still having tranny issues and it seems like the tranny holds my engine back is that even possible??? i mean with my exhaust fixed the shifts seem nicer but the 1-2 shift is still quirky... Im gonna throw a new computer at it then take it to another tranny guy. I want to see what they say about it then go back to my guy with the info...