Review on GM Genuine Parts 89060413 Intake Manifold Gasket Kit: Ensuring Reliable Performance with Side Intake Gaskets by Chris Hazzard

Had to replace the intake gaskets on our 2003 5.3 liter Tahoe (a known problem with leaks over time) and they fit/worked perfectly. These are the original "green" ACDelco seals. They snap in just like the OEM ones and one look will tell you they're clearly superior to the "orange" OEM seals. There are several videos on Youtube that will walk you through the process of replacing intake gaskets/knock sensors. It just seems intimidating but take your time (4+ hours) and you can do it yourself and save hundreds. In my 50+ years of working with wrenches and knuckles I have always relied on quality products from ACDelco/Delphi. If you choose another brand. Remember, you get what you pay for and you may need to replace what you just installed.