This manifold is the result of over one year of development and testing and has
proven to provide significant increases in power. In direct comparison dyno tests
against a factory LS6 intake manifold, the Typhoon produced 17.7 more horsepower*
at 6,200 rpm. It also makes more power and torque at low and mid-range engine
speeds than other aftermarket manifolds. This design features a larger plenum volume,
which makes the manifold suitable for larger displacement engines. The manifold has
nitrous bosses positioned on the port runners. The LS1/LS6 version comes with either
an 85 mm inlet or a 96mm inlet. Professional Products offers 80 and 85mm throttle
bodies and 96 and 101mm throttle bodies are in development.* The 96mm inlet version
of this manifold can be used with either the stock 91mm LS2 throttle body or various
aftermarket large bore throttle bodies. The manifold kit includes high volume fuel rails
with stainless steel mounting brackets, stainless hardware, and a -6 AN stainless braided
crossover hose. Additional fittings are also supplied that allows connection to the stock fuel
inlet line.
Note: This manifold is not legal for sale or use on any pollution controlled motor vehicle.
*Dyno test was on a 350 cid LS1 with AFR heads and Lunati cam.
Note: Fuel rails not shown in satin photo but are included in manifold kit.