This short ram intake improves power by 4-5hp with strong gains throughout the power curve. Comes with ultra efficient dry air filter which will not deposit oil on your mass air sensor. This simple bolt-on air intake allows you to complete your 2ZZ installation properly without the excessive rich mixture and drivability problems caused by reusing the too-small Spyder 1ZZ intake system. Filter is placed in the same spot as the factory filter (next to header) for easy serviceability.