TOMEI Expreme Turboknie Nissan RB20/RB25DET (R31/R32/33/34)

With a smooth inner walls, high flow capacity, easy to install flange design for an easy direct bolt on application.Compatible with the stock turbo and the Tomei ARMS Turbo will contribute with improving the power output. Designed to suit a Φ76.3mm front pipe.

The stock outlet pipes mouth is partially blocked at the port bypass side. This design is for low engine speed response. We’ve enlarged this section to improve power gains. By optimizing the shape of the enlarged area, we were able to prevent the loss of both torque and power in the low engine speed range.

The internal diameter has been enlarged by 120%. This will significantly drop exhaust back pressure.