dlazrael

I'm thinking about getting the Mac Prochamber for my mach1. I have a set of cats in front, will I need mil eliminators when I remove the back cats b/c of the prochamber?

Tim37

if its a catted prochamber then i would think that they made it where you won't need mils but i think iwould call mac and ask them.

xx9gt6xx

Exactly. If it's an O/R pipe then you'll need the MIL's. But if your running cats on your prochamber you may be okay. But call MAC or a local performance shop and ask, unless you get better feedback here...

The Great Cornholio

Eliminating the rear set of cats by going to a catted midpipe with only two convertors will not require MIL eliminators....mine doesn't.