Tomei Expreme Unequal Length Exhaust Manifold - Subaru STI VA Walbro Each faceplate is double sided

Each faceplate is double sided with standard PSI on one side and metric BAR on the other

4000XS Rotors are sold individually

When arriving to the racetrack

- Engine mount set with Transmission mount

Type-28E Core Dim: L600 / H248 / W66 mm

Tomei Expreme Unequal Length Exhaust Manifold - Subaru STI VA Walbro Each faceplate is double sidedTomei introduced the high efficiency 4 1 as against the STD 4 2 1. The exhaust efficency of the standard exhaust manifold is not perfect. But Tomei 4 1 type exhaust manifold has high efficency. You could see the change of dramatically driving feeling. The complete equal length is good for the exhaust intervention but reduce the turbine performance and increase the exhaust resistance. Contrary to that, the not equal length exhaust manifold can lead the