The LS1 engines have a bit of a PCV problem.  The factory system makes a mess of your intake, allowing too much oil sludge to contaminate the intake system.  This oil catch can is the solution for catching those blow-by gasses that create carbon and oil sludge build up in your intake.  This kit includes a catch can, breather filter, mounting bracket, rubber hose, and a PCV valve. *98-00 F-body cars require EGR modifications for proper canister mounting.