Tomei EJ255-EJ257 Unequal-Length Header for Single Scroll Head this beanie is designed to

this beanie is designed to withstand regular wear while maintaining its shape and softness

In vehicle mount

The end result is a slightly quicker spooling turbo while trading off some high RPM horsepower capability

Perfect for all custom wiring jobs utilizing Link WireIn ECUs

5cc) for EJ20 Heads

Tomei EJ255-EJ257 Unequal-Length Header for Single Scroll Head this beanie is designed toHigh 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