Curious as to what this is? Im guessing its for rail pressure some how some way and how will this allow up to 65hp by allowing the rail pressure to read more psi? Fill me in... . eBay Motors: 03-07 Dodge Ram Cummins 5. 9L CP3 Chip Tuner Programmer (item 160254809210 end time Jul-05-08 09:22:11 PDT)