Just wrapped it up. Sounds better but I'm pretty sure I cracked the number 4 spark plug cause it's got a solid miss in that cylinder. No heat in that primary after running (others were scaulding hot).
Also, for you guy that've been running them for a while with no cat, Are you running the O2 sensor in the rear location? cause there's no way to install it without it hitting the tunnel wall. I extended it out for now to run off the rear O2 location.