So after 175xxx miles manifolds finally crapped out. Been looking into Cajun stage 1 sounds very enticing but on the other hand I have a chance to get 2nd hand manifolds no cracks for 400. No brainer for the wallet is the manifolds but don't wanna replace again I've read the horror stories of 4x4 installs. In yalls expert opinion worth the risk or get the headers even with the high mileage I have but I do maintain my truck very meticulously.