Using this turbocharger is easy. First, make sure your vehicle is a 2001 - 2016 GM with an LML 6.6L Duramax engine. Then, replace your old Garrett turbocharger with this new one according to the vehicle's repair manual. When it comes to maintenance, check the turbocharger regularly for any signs of wear or damage. Keep it clean and make sure the connections are tight. As for EGTs, you'll notice a decrease, but still monitor your engine's temperature to ensure optimal performance. Remember, the image shows an optional polished compressor cover, so your actual turbocharger might look different.