alright so i wanna do a custom exhaust and i got a dc header that i think has 2.25 in piping going into the cat but i wanna do 2.5 in all the way from a hi flow 2.5 in cat and custom 2.5 in from kteller now here is my prob i dont know if i need to get one of the hi flow cats that makes 2.25 inlet and 2.5 outlet or can i just go and get a 2.5 in hi flow cat and it will bolt up right please help me

 

Just tell Kteller what you want and he will give it to you, or you can tell him what you have and he will tell you what you need. Save yourself time and just PM him.