The 4.8/5.3 header package is available and the one for the 6.0 trucks should be ready to ship in a few weeks. We are currently taking orders for this package and will ship as soon as they arrive. You can also order the headers by themselves and cut/weld them to your stock Y-pipe.

115-841300 - 2000-'03 5.3 Truck / SUV - 1500 series 2WD & 4WD pickups, Avalanche, Suburban, Tahoe and Yukon

115-841350 - 2000-'03 6.0 2500 series 2WD & 4WD pickups and Suburbans, Escalade, Denali and H2

115-841310 - 2000-'03 4.8, 5.3 and 6.0 Chevy/GMC 1500 SUV*
(*Avalanche, Escalade, Suburban, Silverado, H2, Tahoe, Yukon and Denali)
This package is for the headers only with 2 1/2" collectors. Reducer cones have 02 sensor bungs installed. You will need to cut/weld these to your stock Y-pipe.


115-841300
SuperMaxx Stainless header System
$1294.99

115-841350
2000-'03 6.0 GM Truck / SUV SuperMaxx Stainless header System
$1294.99

115-841310
2000-'03 4.8, 5.3 6.0 GM Truck / SUV headers only (won't fit 2500 series)
$974.99

Tom

 

What is the difference between the 4.8/5.3 kits and the 6.0 set-up? Or is the difference 1500 vs 2500 series vehicles?

 

The Y-pipe is different on the 6.0. There is also a difference between the 1500 and 2500 series.

 

The Y-pipe, I'm pretty sure.

 

why no availability for the '99 2500's ??, is the frame diffferent or something ??

 

I currently have a set of these LT on a 5.3 and would like to upgrade to a 6.0, wouldn't this be a direct swap? Is the different y-pipe because of a 4L80E tranny?