Body lift and C.A.I.

[USMCRay]

I have a 3" body lift on a 98 Tahoe and I want to get the K&N cold air induction. Has anyone done this and what mods do I need to do? I thought about a throttle body spacer but K&N doesn't recommend that. They say I have to modify the kit but they won't tell me how because it voids the warranty.