This video is from Overlanding USA YouTube Channel and shows how to install a Sprint Booster V3 in a Toyota 4Runner.
Actual Installation starts around the 1:30 minute mark. Around the 4 minute mark, he takes his 4Runner on the road and shows you what Sprint Booster V3 can do.
And if you want more here's one from Jason Koertge.
Find a Sprint Booster V3 that fits your Toyota! CLICK HERE!
Toyota 4Runner Review and Installation by Wanderlost Overland