very cool guys

 

During the header and y-pipe install did you have to relocate the vapor lines on the driver side of the truck? I am installing the pacesetter longtubes with 3" y-pipe and it runs extremely close to the vapor and fuel return lines.

 

Nice write up. LTs have een on mine mind for a few months now and I going to get them one day soon. One day..........

 

Is the Y also made by Pacesetter -- maybe even a kit? If so, does it meet up with the cat-back section in the same place as stock?

The only thing that ever kept me from considering headers was the DIY aspect of getting them connected to the rest of the exhaust.

 

You mentioned that you have to get a Y-pipe in order to keep the pre-existing Cats? Did you keep the cats and where did you get them from? I've got straight pipes right now and I want to keep my exhaust a little eco-friendly with the cat.

 

you donthave to relocate them, but I used wire/zip ties to pull them tight against the frame rail to ensure they dont touch. You may also consider using the aluminum heat sheild from the stock manifold to fabricate some kind of heat shield for them.

Yes, the Y-pipe is also made my pacesetter. The fitment wasnt 100% perfect as far as lining them up, but VERY close. I just unbolted the hangers at the exhaust tips to get the y-pipe and muffler to line up easier, then forced the tips back into place. It went together very well without hardly any effort .

No, if you get an aftermarket y-pipe you've gotta lose the cats. If you want to keep the cats, you still need a y-pipe, but dont invest the money in one for a kit, because you'll have to hack it up. PM HammerZ71 if you have questions about the LT's while keeping the cats. I took mine out.