The numbers originally posted are only for the 3 valve 4.6L.
If there are any 2 valve models being sold in 09 they are carry over from the 08 models.
Here are the numbers for the 04-08 F150 4.6L 2V engines:
91 performance provided gains of +15 RWHP and +17 RWTQ
87 Performance provided gains of +9 RWHP and +14 RWTQ
Tow produced gains of +6 RWH and +12 RWTQ
Originally Posted by rockoffroad
Scott..which 4.6 are you giving these numbers on? 2V or 3V? I would think there is a difference..no?