Weapon R Intake Systems are CNC Mandrel Bent out of 6061 aluminum, and then Hand Tig Welded to ensure a positive seal and proper fitment. Each intake system is carefully tuned, by matching the engines displacement, air intake capacity and airspeed to the intake systems tube size and length, maximizing every engines performance output. This Intake is matched with Weapon R's World Famous Dragon Filter, which provides maximum airflow, with the protection of high quality dense Poly Urethane Foam. Many studies have shown Flow rates of up to 80% more Air and Better Dirt Filtration with Foam Filter than the conventional cotton filter. The Dragon Filter features a Computer CAD Designed and Flow benched Tested Velocity Stack, which greatly increases airflow and air volume into the engine, therefore increasing engine performance. Another one of the Dragon Filters positive features is the capability to be disassembled to be cleaned and then re-assembled after cleanings. You can also change the color of the foam filtering element with new elements sold separately. Weapon*R Dragon Intake Systems are one of the mostly highly rated intake systems in the world. These intakes are used in many countries in many different forms of racing. This intake system was also recently rated "Best Overall Performer", outperforming Cold Air & Short Ram Intake systems, in the 2003 Tuner Performance Reports Intake System Battle.