im putting headers on my 1999 2500 soon.my manifolds are warped.here is the deal.i have a set off a k5 will they work on the 99?i know the bungs are not there for egr or for o2 sensors but thats a easy fix.i ask cause every header i find is 300 dollars and up.also im looking to do long tubes and thats why the price is so high.