Neophyte Questions

[MarineHawk]

Got my new H@. It’s black. It’s a f#cking Tiger Tank! It’s awesome!

Need a little educatin’ from anyone who cares to answer any of the following questions that the dealer couldn’t:

Q1: Dealer just told me without knowing that I could just unscrew and remove the crossbars. Wrong. Now he says you can remove them by loosening them, sliding them rearward, and moving something else and then taking them off. Is he right this time? Is it easy? Otherwise, I have to find a new place to park at work.

Q2: I ordered the high performance exhaust from GM. Did I waste my money, or is the dealer correct that it will, aside from growling, produce an additional 25 HP and improve gas mileage?

Q3: I perfectly understand why the H2 spec sheet says that activating the rear air suspension (lifting the rear by about 2”) would increase the departure angle. But how in the world could that, as the specs claim, increase the approach angle? Seems geometrically counterintuitive to me. Lifting the rear should put more downward force on the front. I wouldn’t think it would decrease the approach angle significantly, but I can’t see how it would increase it at all.