[mazda3415]

So I have been looking into headers for my 2011 2.5 mazda 3, but very hesitant on upgrading them because I live in California and of course having headers it won't pass smog. However, I found a magnaflow header that has an integrated CAT so it might pass smog. But i have not read any reviews on it and could not find anything about it. So if anyone has any experience on this that would be appreciated.

https://www.carid.com/magnaflow/dir...-mpn-51440.html?singleid=78098860&url=1175864

 

[don77]

I'm really curious as well especially since people were saying the MSDS headers didn't provide any meaningful power gains. Maybe this is too new so no reviews of as yet.

 

[mazda3415]

That could be possible that its too new to have reviews. If anything I may take a chance on it. Or contact magnaflow and see if they have any dynos or anyone who has had experience with the headers.

 

[mazda3415]

I went ahead and emailed them and this is what they said, " Part number 51440 is a FEDERAL DIRECT-FIT catalytic converter. It is not a performance header" I guess that answers our questions haha