A lot has changed in the performance world since the time many of the intake manifolds on the market were introduced 20+ years ago. With the popularity of larger stroker engines and more efficient cylinder head/cam designs has come a need for intake manifolds to support these larger displacements. Weiand recognized this and has developed a new line of Street Warrior™ intake manifolds designed with Computational Fluid Dynamics (CFD) to generate maximum horsepower and torque out of today's engines.