The Hyper9 does seem a tad small for a Cherokee. I think you want an 11 or 13 inch motor, not a 9.
As far as OBD-2 goes, who cares? The women in my family have driven for years with the check engine and/or traction control light on.
As far as OBD-2 goes, who cares? The women in my family have driven for years with the check engine and/or traction control light on.