Yea I replaced the front/rear elbows and grommets when I did the valve cover gasket. The rear was easy enough but the front came out in pieces...the elbows are in there pretty good. Buy new elbows and grommets before you start, it'll be about $20 for everything. The rear grommet on 05/06's are different than other years and is a dealer only part...the front you can buy anywhere.