By itself it will add very little peak HP, 3-4, however it will flatten the curve after peak HP and allow the engine to spin up to redline more freely.

Also, with a good premium fuel tune you will gain noticeable torque at WOT, in the mid and upper mid-range RPMs.

 

I can't wait to get my TF one...I guy a buddy whos currently getting a kenne bell installed and is gonna sell me his TF plenuma and a 75mm accufab TB for $100