If you've got a Gen 5 3.0L kit from Whipple with the standard lid and intercooler and are looking to upgrade to the CJ lit, this is the kit that you'll want to purchase. The Cobrajet Lid kit includes a larger intercooler, spacer, Cobrajet Lid, and Cobrajet -16an inlet fittings. You will need to do your hose routing for this upgrade as no plumbing is included.