the 2005 Ypipe is different and requires a slight modification to fit.
on the 05, the entire "Y" section is cast metal, making the tolerances around the intercooler mounts needing to be 100% spot on (guess what, they're not, as they wre ideally designed to have a minor amount of flex the 2004"Y" affords.....)
check yer pms...
i'll swap ya my modded Y pipe and my modded splitter......
ese