I have a 1999 Cobra with 4:10 gears, flowmaster catback, short shifter, and subframe connectors, and need a programmer to adjust for the gears. I have a Diablosport Predator for my Dodge Hemi truck and it made a noticeable difference. I am in between SCT and Diablosport. I want a handheld plug in tuner to clear codes, add a bit of HP, adjust for gears, and maybe log. I don't want a custom tune just basic tune. I found Predators for $260 and SCT over $350. Is there much of a difference? Any preference for any particular reasons? Thanks.