When I did mine I used one quart of both the epoxy and the catalyst. I used all of it. Did you degree your intake and all that? I'm sure u kno as I did a ton of research before doing the install. I also roughed up the area around the intake cut out for the epoxy to bed into. Use tape on the outside perimeter to tool to so when u peel it off ul have a nice strait line it'll make your intake look really nice. It's a little messy but if your careful Itl come out tits