Zero/Sports Exhaust Manifold for 2002-2007 Subaru Impreza STi/WRX

The Zero/Sports Exhaust manifold is designed to increase the torque response of the engine in both the low and high ends of the power range. This manifold is popular among the circuit racing community in Japan, and is quickly gaining popularity in the States. The diameter of the main pipes has been increased to 1.7 and the diameter of the 4-1 collector is 2.37. The manifold is constructed of high quality SUS304 Stainless Steel and includes a roll of thermo-wrap bandage for wrapping the manifold.