ls swap exhaust question

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JoeM

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Jan 27, 2016
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Location
Wallkill,NY
Putting a 2001 5.3 into my 98k1500.
I would like to retain the exhaust manifolds and want cats. Will a stock 99+ y pipe with cats fit in my truck?
If not, has anyone used the pacesetter lt’s & y-pipe and a cat? If so, what parts did you use?

Also, I have the 2001 4l60e that I’m gonna use. Dirty Dingo mounts the correct ones to use with no mods?
I remember seeing a notation that might need to make a small notch on the frame to clear the truck oil pan...?

Appreciate any info/advice.
 
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