Welcome to the CEG. Removing the resonator and putting a muffler will make it louder but livable (isn't that loud until you put an intake

) I am currently putting headers on my car. The reason I say currently is because it will take a lot of modification for them to work. Like I posted not a project for the faint of heart. I have never seen the Kenne Bell chip but I do have a Superchip and if it does the same thing I'd say go for it. My chip helped out the shifting a lot (firmer shifts) It also shifts more for performance (higher up in the RPMs) when you get on it. It sounds you are "putting together" a nice Zetec. Keep it up.