I purchased a used AEM short-ram intake with a Dry flow filer. The installation process was fairly simple which required removing the stock intake piping/filter/ Mass Air flow sensor and replacing with the new parts. Its always advised to clean thoroughly when installing used engine components to your vehicle.
Above all, always disconnect the negative battery terminal when working with anything electrical on the vehicle. The MAF and pipe may need to be adjusted before tightening for a proper fit. I also reset my ECU by holding the brake pedal down while the vehicle was fully discharged.