I have a 97 Lesabre that the intake exploded due to a backfire from the faulty fuel regulator that was never recalled. I figured that as long as I am in there repairing the plenum, I might as well do the UIM and LIM gasket update as well. I was wondering which is the prefered upper plenum and gasket set to purchase? Is the Dorman a good one or should I go with another one others have used? Also, I see Dorman has a kit with the gaskets included but is there a better "kit" with all the components available? I also have heard of others replacing the lower intake manifold for a new one as well and was wondering if that is needed. If someone could share part numbers and any tricks in doing the LIM UIM update I would a appreciate it!!!!