Today, I removed the VFAD unit from the 8, to see if it would make a difference or make it worse. I was shocked in how well the car performed WITHOUT the vfad unit! The big difference is at low rpm, the car revs alot quicker now. I highly recommend getting rid of the VFAD unit. :o

From the negative side, idle is not as smooth. And the car is alittle bit noiser.

 

Most reports of removing the VFAD from a stock car found poorer low end performance

Hope your experiment continues to work better than stock

 

the RB intake makes you remove the VFAD unit... ::shrugs::

 

The RB unit also flows more air than the stock system.

 

In conclusion, get the RB unit.