A catalytic converter requires a certain operating temperature to perform properly. Excessive temperatures will reduce cat efficiency and possible reduce operating life. Has anyone with a wrapped downpipe experienced (and a minimal assortment of other mods) 1.) problems passing smog tests, and/or, 2.) accelerated degradation of the catalyst bed?

 

the whole issues on to wrap or not to wrap as been talked about massivly, search for it. as for the cat, its pretty much gone after 100k....

 

I have searched for it but this topic is not mentioned.

 

https://www.rx7club.com/search.php?s...der=descending

What exactly did you search for?