The Typhoon is a direct bolt-on for 4.6 mod-motors with '99-'04 cylinder heads and has bungs and provisions for all the OEM sensors, injectors, fasteners, and such. It's definitely a drama-free manifold that doesn't require additional hardware or modification to install.
Rick always uses his Power Pipes to eliminate inlet restrictions for this type of evaluation. Here, TJ "Doogie Howser" Clark connects the tube to the Professional Products 75mm throttle body and plenum.
Josh Kilday's 'Stang stood up to 200 pulls on Anderson's chassis dyno, and ultimately showed us that the Typhoon gets it done for the Two-Valve engine.
Horse Sense: Looks are deceiving. At first glance, the new manifold looks as if it's just an aluminum copy of the plastic stocker we've all grown to hate. You definitely can't judge an intake by its cover. This thing's a whole lot better!
While it isn't a torque monster (an average torque value of 319 lb-ft remained consistent throughout the test phase-a gain of only 2 lb-ft over the stock manifold), Professional Products and Anderson Ford Motorsport have come up with something that socks it to the 4.6-liter when it comes to making raw horsepower without breaking the bank.
Josh's Roush pumped out 310.60 hp and 316.98 lb-ft of torque in an initial dyno test with a stock intake, throttle body, and upper plenum. These figures were used as a baseline, and better numbers came about quickly. When Rick added Professional Products' upper plenum and 75mm throttle body to a stock intake manifold, horsepower increased to 317.06 and the plenum/throttle body combo proved to be the source of the aforementioned 2-lb-ft torque gain, as that number rose to 319.10. The final iteration of Anderson's testing was done with the Typhoon and Professional Products upper plenum/throttle-body package. In this trim, the Two-Valve engine spun off 326.08 hp and held steady on the torque side, at 318.95. When compared against a stock, plastic intake, the Typhoon boosted horsepower by a ton.