If you have any mechanical experiance headers are no hassel...the hardes part for me was the ORY...

 

if you go with pacesetters you will not need o2 extensions. just a tune and it WILL be worth it!!

 

Use the stock MLS gaskets and they will not leak. Most LT headers have o2bungs in them so there is no need for o2 extension wires. You can have flanges welded to the stock y-pipe and you can use an aftermarket catback. With a tune you should see 25-30 rwhp and about the same for torque. Whether or not its worth the money, only you can answer that question.

 

they're a supporting mod your going to need em sooner or later if you want a fast truck. I dropped .2 sec off my et with mine

 

At first I didn't think they really did much, and then I got my tune adjusted and they came alive. I am glad I got them. I didn't need extensions. I used the gaskets that came with the headers and so far no leaks thankfully. They have been on there a little while now. I didn't know most people didn't use the supplied gaskets, so I don't know how long they will last. If I was you I would either reuse the stock ones or get some good copper ones. With the longtubes, no cats, adjusted tune, a cutout, and shorter tires I dropped 1.2 seconds off my quarter mile time. I know this isn't the normal, but it did it.

 

go with the pacesetters they are awesome and look great. get the stock gaskets from gm though.

 

Everything they said.
Stock gaskets work real well. I seen a real nice gain with mine. As stated, it's an easy install, the hard part is the ORY.

 

The ORY can be pain, mine was a 2 piece and a friend of mines was a 3 piece? his was much more difficult. You can re-use your stock gaskets as well. I have one small leak in the ORY at the clamp I just ain't got around to tightening yet other than that no problem. Gained .2 without a tune.