im working on locating a pair of the 2500s im not even sure they will fit with my long tubes and 80e...especially on the driver side

 

found a pair at the junk yard w/31k on them for $300. not a bad deal at all. problem is they will not fit. they measure 7" round and 11.5 long. just not enough room under the truck. i might be able to get them in right before the axle but dont think there will be enough heat left in the system for the cats to light.