Our MH has the Banks system air induction and exhaust installed, but I cant give you any report on before vs after performance, because it was already installed on it when we bought it.
I will say that you can hear the intake whine, sucking in cold air on moderate acceleration. When using the cruise control, it will hold 60-65mph on climbing the hills in and around the Ohio River Valley with relative ease. Your 0-60 time in a MH shouldn't be as high a priority as in your passenger car....
This is the first class A, I have owned but, not the first big engined V8 hauler. I like the Banks system on ours, but if it didnt have it on it, I probably wouldn't be in a big hurry to install it, mainly because of the initial investment of $$.
My recommendation is to postpone the Banks installation and see if you really need it. Id say if you were at maximum capacity and towing, then it might be worth the investment.
The Macklin's - 1998 Georgie Boy 'Pursuit'
Pete: Pilot/Mechanic - Jen: Navigator/Travel Planner
Taylor & Patrick - Along for the ride....