Using this EGR block off kit is straightforward. First, make sure your vehicle is turned off and has cooled down. Then, remove the factory exhaust pipe from the exhaust manifold and EGR cooler. Install the EGR Cooler Inlet Block Off Plate and the Exhaust Manifold Block Off Plate according to the provided instructions. Remember, custom tuning is required for this kit to work properly. When it comes to maintenance, keep an eye on the anodized finish of the aluminum plate and the stainless - steel plate for any signs of damage. Clean them regularly with a mild cleaner. If you want to use an aftermarket 1/8' NPT EGT Probe, just connect it to the kit using the included adapter. Always follow the manufacturer's guidelines for the best performance of your vehicle.