I changed to PPE manifolds and pipes when I replaced head gaskets on my 2005 LLY. The factory exhaust manifolds, up pipes and downpipes were in great shape when I took them off and they have 125,000 miles on them. I also have the factory intake tube and EGR system, including the cooler, for sale.
Intake tube - $40
Exhaust manifolds (passenger manifold already tapped for pyrometer, but it has a removable plug) - $50
Up pipes - $50
Downpipe - $30
Actual shipping charges from 39047.
Intake tube - $40
Exhaust manifolds (passenger manifold already tapped for pyrometer, but it has a removable plug) - $50
Up pipes - $50
Downpipe - $30
Actual shipping charges from 39047.