Minvike,

I just got my 04 Xterra done at that same location off of Ft Lowell yesterday. I also got the VFORCE. Steve (the person who I talked to on the phone) said that I would not hear it inside. Well... I drove around yesterday listening to it...and yes... you can hear it from the inside. Do you know if the Flowmasters are louder? What are you planning on doing?
Raymond