Does anyone have a "how to" on hollowing out stock cat converters?

Thank you very much.
Rick

 

 

Yeah take it off put in a vise or something to hold it,take a long screwdriver and a hammer and knock it out or find the biggest drill bit you got and drill it then take the screwdriver and chip the rest out

or just buy a highflow cat,my choice

 

Thanks.

 

no prob

 

its not going to do anything buy hurt performance,trust me i had a burnt up cat"completly hollow" and it just hurt my performance i dont have enough $$$ righ tnow for a new one so ive been cruzing around with straight pipe.from the header to the exhaust.do you really want to pollute the earth any more for 1 hp? as soon as i get every thing fixed with my car im getting a new cat.i suggest you keep the one you have or replace it with a high flow model.