The cats on our trucks flow good enough that I doubt it'd be more than 1 or 2 hp tbh. The only reason to remove them is for long tubes. That being said, why not get LTs w/ catted ORY (OBX, Kooks)? Unless you're doing the work yourself, shop labor on welding in your stock cats will probably be the same if not more expensive in the end.
Potential Horsepower Gain of Long Tubes with Factory Cats?
I have read about the considerable power gains from long tube headers on these trucks. However, I am curious as to how much of those gains may be attributed to the additional exhaust flow of an off road y-pipe or high flow cats? I have been considering installing LTs, but I would be reusing my stock converters, whether in a shortened factory Y or welded into an O/R Y. How much power do you guys think could be gained from LTs while retaining factory converters?
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