This is for you guys with newer Duramax motors who get stuck with cats. 3.5" catless LB7 downpipe in great condition ready to bolt on. $75 shipped.

-Dustin-

 

will it work for lly or just lb7? thanks

 

I am pretty sure it works for all Duramax motors, which is what makes it an attractive option when deleting the cat on later model DMax's. I cant say I've ever put one on a LLY or LBZ, but I have read on dieselplace.com that it works.

-Dustin-