Chris , I can only speak for the unlawful system ( I have loaded lots of pics of the install under the readers rides section here ) , but the system is well engineered, strong and highly adjustable. I have 345' tires in there with room to move. The guys at unlawful we're super helpful as well.
Good luck with your choice. Cheers , Darren
-------------------------------- Darren Beale Keith Black Racing Engines®