Ceramic or steel Cat convertor

[funga007]

need to change my cat on my w202, funds are tighter than a nun at the moment but i was wondering the advantages and disadvantages of steel and ceramic cats. price wise its about £50 difference.
any guidience will be most welcome.

 

[kth286]

why need to change cat ?

 

[bouncer]

Steel ones are more robust, worth the little extra. The precious metals don't regress into the steel but they regress into the ceramic becoming less efficient.

sTeVe