The new 2.9 whipple for the 5.4L 2v was relesed and like the 3.4 the midplate was not so good. The huge hump in the middle and super small port for stock intercooler are horsepower robbers. My design includes a huge port to match the aftermarket Trick intercooler, a straight flow port to the intercooler with no hump (see last pic of stock midplate) also a 3/8 integrated spacer is available and will need some firewall modification. All this makes for a winning combination and getting the most out of your 2.9 blower. 
 
Comes with sst hardware
Direct bolt in using Trick intercooler
01-04 bolt pattern only