exhaust Army Beta, MRT, Sherco. We invite you to discover the exhaust Army mufflers. Our pots are made entirely by hand at one of the best manufacturers in Europe. The Army SX 86 Top Alu pot is made of 22 cones of sheet steel and has any part stamped by a robot . 100% handmade is a must with us. The welds are made with perfect precision to optimize the flow of exhaust gases for even greater performance. The 70-80 pass low muffler is developed to work with the Metrakit cylinder Pro Race 70-80, or a performance cylinder ranging from 70 to 80 cc. Browse our store and explore our catalog of exhaust pipes.