hey guys well my cat is totally gone. my car failed emissions test 3 times because of it so im looking for a new one. im looking to go with a magnaflow high flow cat? anyone notice any respectable hp gains from them? thanks.

 

Very noticeable gains from my 2.25" Magnaflow cat

 

thats good to hear. honestly i wouldnt think so. but a buddy of mine told me when u first throw on a highflow cat its like the same gain u get when u first put an intake on

 

did u have a huge sound differance when you put it on?