Used from DarrenWS6:

11" Magnaflow Cen/OFF -



14" Borla Cen/Off -



Thanks Darren

The Borla has two little humps in the bends while the Magnflow doesn't...thought it was interesting.

How would these two flow in comparison??

 

They should both flow exactly the same. Whats the size of the Borla, also 2.5"? The will both flow the same if they are 2.5", though the Borla will be louder being ceramic inside instead of packed wool.

 

The Borla is 2.25". What purpose would those humps serve?

 

Absolutely no purpose at all, just the affect that happens when the preforated tube is bent.