Hooker headers are the Cadilac of exhaust systems.
I've got cheep-os in the Jimmy and would swap-em out for Hookers any-day.
Just a side thought, the Cheep headers I have plugged into the Jimmy right-now, are actualy for a 1-gen camaro.
They fit and clear everything, plus the collectors are tucked up higher in the frame than other headerrs I've seen for 4WD Chevs. (all-though, the Jimmy isn't totaly plumed and wired right now, I don't foresee any clearance problems at this time)