I didn’t think we had heaters?

I looked and the tuner actually had everything done when I took it. I guess that is why when I broke that one cat it never turned a CEL on

 

Last piece of the puzzle is the y pipe. I cannot get this thing on and I believe it is oging to have a gap...


Edit:
It’s on attached is the fitment issues

Not that I really care cause this is past the cats. Driver side y pipe elbow connection

 

What's holding it from seating all the way?

Sometimes the muffler and pipe hangers need to be cut and re-fabricated so thing can move around. I rigged my new SE true duals enough to get me to my muffler guy. The hangers were not matching my truck 100%. In the long SE thread this is commonplace.

 

It seems to be too short. My passenger O2 is stupid close to the frame as well I thought it was not going to go in. I’ll take a video tonight of everything and my suspicion as to why it is like it is.

I do have a vid of true dual open headers for your listening pleasure. I’ll drop a link in a few minutes

 

 

My passenger side O2 is also very uncomfortably close to the frame rail. I think you should leave it open header sounds great.

 

Chop chop chop sounds like a hotrod

 

It does sound awesome! Like you said above yes the muffler pipes will need to be fixed by an exhaust guy, they are just barely too far away.

So I am trying to log my afr with my hptuners and have yet to have success. For some reason it will not pick up my usb to serial port and whenever I turn the truck on the whole channel disappears, very weird.

Getting plug wires next week. After the header install I am running at 16-17 AFR just part throttle. When I floor it it drops down to like 10 I think. I'm gonna say it is working lol

 

10afr is radically rich for an NA motor, 16-17 is way to lean but the AFR sensor may be reading lean if there are leaks in the system.

 

I believe there might be just because of that one spot in the y pipe.
It will go to a muffler shop next week

Edit: Yesterday I cranked the truck over and at idle it was at 20!!! Meant to mention that. That’s why I’m pretty sure it is leaking. I need to take a quick log today to look at my O2 sensors and make sure they aren’t acting retarded as well.