Tomei EJ255-EJ257 Unequal-Length Header for Single Scroll Boost Control 2 x Trigger Inputs

2 x Trigger Inputs

Every Header setup is inspected

We are perticular about the welding and exhaust efficiency is improved very much

Single RPM

heat treated prior to rolling and machining

Tomei EJ255-EJ257 Unequal-Length Header for Single Scroll Boost Control 2 x Trigger InputsHigh Efficiency 4 1 Type We 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. Not Equal Length Design The complete equal length is good for the exhaust intervention but reduce the turbine performance and increase the exhaust resistance. Contrary to that, the