I installed a ATS arc intake on my 04. 5 ram3500 srw and I thought it made some difference, in acceleration. But the problem started when the instructions said you have to gently bend the dipstick to its new location, I couldn't have been any more gentle with it , otherwise i wouldn't have been touching it, and you guessed it, the end just snapped right off, so it looks as though i'll be replacing my damn dipstick assembly. Oh and another thing i noticed, for some reason the bolt that would have held the dipstick mounting bracket is to damn big. Anyways i have seen another mpg since install.
04. 5 Ram3500 SRW QC/4. 10/FASS 95/Edge EZ/ATS Arc Intake/AFE Stg2/4inch straight no kitty/BD-Xmonitor/16. 7 mpg in town