This Jeep 4.0L X-treme Camshaft Kit by Comp Cams is a great addition for anyone looking to improve their engine's performance. The kit includes all the necessary components to upgrade your valvetrain, ensuring a smoother and more efficient engine operation. The manufacturer part number is K68-232-4, and the kit is designed to fit perfectly in your Jeep. Additionally, it is important to note that this kit may contain cancer and reproductive harm warnings, as indicated by the California Prop 65 Warning. Overall, this camshaft kit is a great choice for anyone looking to improve their Jeep's performance without compromising on quality.