FedEx guy brought my LT's today. I opened the box and everything looked great, but then I noticed a little box with a sticker that said 99-04 Silverado/Sierra 4WD Headers. So that got me worried since my truck is 2wd. Inside the little box there is wires, nuts and bolts, etc. Anyone know a way to tell the difference between the 2wd's and 4wd's, or is it just the Y-pipe that is different?

And for some reason my Y-pipe didn't come in with them, so maybe they'll bring that tomorrow.

 

They should fit your 2 wheel drive just fine, Pacesetter no longer makes the 2 wheel drive only headers, when they came out with the 4x4 headers they discontinued the 2wd as the 4x4's fit both models. As for they y-pipe someone else will have to chime in on that one.

 

you should have no problems with them at all... mine had 4WD stickers on the headers and Y=pipe boxes both... everything fit fine when it when in.

 

Thanks for the help ya'll, hopefully everything will fit without any problems.

 

4wd versions still have the driver's side collector still angled down ever so slightly?

 

my headers and y-pipe came in different boxes

 

Mine came the same way. They should fit fine.