[Tincan18]

Hello I have been lookin into a CAT back exaust system for my 1994 ford mustang gt. I was thinking of replacing the cats i have with 2 hi flow cats. Also along with that i was going to get 2 v-force hi flow mufflers. I have done a little research and it is going to cost around 5-6 hundred dollars. So my question is, roughly, how much horse power will i gain from doing this work and will it be worth my money? Thanks.