This might be a noob question, but I have heard different answers to my question. I have seen one person post that high flow cats are directional. I have also been told by another that they are not. I have a Catco high flo cat, and it is welded on in the wrong direction. Will this matter? And will it affect performance?

 

when i got my high flow cat from Ultimate racing they had an arrow, so i would say yes

 

Mine has an arrow too. I am suspecting that it is, but the people who sold the system to me stated that it is not. This has me concerned.

 

i just installed my helix one but there was no arrow or anything. can someone tell me if it's directional for sure?

 

I have been told by a Buschur retailer that it should not really matter. Mine has an arrow, and I was still told that it should not matter. If you are really concerned you can call Helix. But I think you should be ok.