on C/H chassis cars --- swap to a W body stick and LEAVE IT IN for the install. 99 and earlier should require no further work and install from underneath and 2000+ may require slight massage or cradle movement. On my 99 PAU i had to remove the heatshield for the steering rack/lines (which did nothing anyways) but this may not apply to you. otherwise just use band clamps and RTV on each joint and you should be good to go.
even my EGR sealed with a bit of copper RTV. and that's a PITA to get to seal normally.
