I am running a ProCar Elite Lumbar.
I went the cloth rather than vinyl. I like the vinyl better except for when it is hot. Plan to take my truck to Central America so went cloth. Very comfy seat. I am 5ft 11" and 175lbs. Only running drivers right now as these are near $500 a pop. Done one long trip with it so far. It is great, no complaints. I used the Procar universal base. I had a spare set of stock seats so cut the feet off of them. Bolted feet in the truck, set universal base on it, got it how I wanted and welded the feet from the stock seats to the base. Fit's like a glove. Gives more leg room than stock seat. Universal base has height adjustment built into it. I set it all the way to highest, I like that sitting position best. Gives great field of vision and is most comfortable to me, have not hit my head on roof yet but it is only 2-3" from the roof at highest setting.
Only things I might want to do now is a very good seat cover, Procar doesn't make any, and a very low profile suspension base.
Cheers