When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Size is the big diff, The 6.0 uses 3" i think and 5.3 uses a 2.5" Not positive on sizes but Iknow they're differnet. Routing is pretty much the same I do believe.