Completely new design plenum and runners for optimized air/fuel distribution and power!

Weiand recognized that todays engine technology has really advanced in our performance world since the Stealth series intake manifolds were originally designed some years ago. With larger stroker motors, more efficient cylinder head designs and aggresive cam profiles has brought about a need for an intake manifold capable of supporting these power houses.
So Weiand wiped the work bench clean and started over.
The newly redesigned Stealth dual plane intakes will nearly match a single plane manifold's peak horsepower number with a much fatter torque curve that is perfect for street and duty.