Yes the intake used on all 3 kits tvs,Whipple,ford racing is the exact same
Really ,I did't know that.
Yep. Roush actually casts the manifolds and sells them to Whipple/FRPP for the 525hp and 624hp kits.
So, anyone with a Roush or Whipple/FRPP kit can purchase the Whipple 2.9L or 4.0L upgrade and it will mount on the manifold.
Here are links to the upgrade kits:
2.9L Upgrade Kits - Whipple - Superchargers - 2011-2014 Mustang GT 5.0L
4.0L Crusher Upgrade Kits - Whipple - Superchargers - 2011-2014 Mustang GT 5.0L
One thing to note, the 4.0L does require the 10 rib Cobra Jet pulley set-up. I believe FRPP has stopped making these, but Whipple is trying to get something going to reproduce them.