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LH Performance Modification Discussions
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 #373848  by Jason300M
 May 23rd, 2018, 8:31 pm
Anyone ever done this or bought headers with the cat gone already?
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 #373853  by FIREM
 May 24th, 2018, 6:28 am
Talked about many times, no one has done it yet.
Headers just do not exist that are a bolt on. Home made only 1 I can think of.
One guy , long ago adapted 1st gen manifolds, custom cats, but no real data as to how well it worked.
https://300mclub.org/forums/viewtopic.p ... fa1a06a783
https://300mclub.org/forums/viewtopic.p ... +manifolds
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 #373866  by hrmwrm
 May 24th, 2018, 8:25 pm
we had a guy come from edmonton once. i didn't do it for him, but our shop did.
it's not a fast job getting the cats out and replacing them with a piece of straight pipe.

best way is probably to cut the end open, and bust out the contents. then it'll be a bolt in with just a small repair at the cut.