Originally Posted by AKA-22
wow !!! how hard is this to get right.....now im wondering if i got this messed up on my car....pics please of where the hoses go...
It's not difficult.
LS3 - center hose goes to the valley cover nipple low and behind the passenger side of the throttle body. The outter hose will go to the nipple on the intake manifold about 2 inches away from the valley cover one. You are just replacing the U shaped hard line that goes between the two fittings.
L99 - Center hose goes to the hard line that runs from the back drivers side PCV fitting. You could run a longer hose to that back fitting so you don't have to cut the hard line. The outter hose goes to the same as described on the LS3. Again you are just putting the can inline with that run.
The link I posted has great pictures and describes the install for both.