The Speed Force Racing Intake Manifold for the Altima and Maxima is built entirely out of 5052 and 6061 aluminum.Each runner utilizes a velocity stack to maximize airflow and broaden your powerband.Each plenum is formed out of a flat sheet os .125 wall aluminum for superior strength.These intake manifolds are capable of withstanding 50+ psi of boost!Every SFR intake manifold comes with provisions for the stock components. We can weld bungs and fittings for direct vacuum connections,MAT sensors,etc...... for FI vehicles.
This intake manifold eliminates the secondary butterfly system of the stock manifold. By doing this we eliminates the dip in horsepower in the midrange and provide big horsepower gains all the way to redline.Thi si the perfect itnake manifold for direct port nitrous and forced inductions systems.