A good conparison between two different VF cars. Testing was done on the same road about one year apart. Our temps and DA is always high here in the tropics, so it was nice to get a actual comparison and not results from northern climates with negative DA.
Car#1: B6 S4 4.2L. Stock engine. Base VF kit with additional pre blower meth, more fueling, and Jackal retune.
Car#2: B6 S4 4.2L. AMTuned Tuner VF kit at 14psi. AMTuned Stage 1+ engine. Jackal Tune.
