how long is the length of pipe between the collector and the 90* bend on the drivers side and how long is the length of pipe between the collector and the y on the passenger side? reason is I'm wondering if there is enough room for a cat on each side.

 

there is always room...just find a good exhaust shop.

I just dropped my LTs off to get flanges welded on, so I don't have them here to measure. PM me on Tuesday, thats when I go to pick them up, I'll measure for you.