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I second the SCT addition to the Edge. I ran the Edge w Attitude on level 5 for approx 8000 miles before tranny started slipping all the time. I installed the SCT and have miraculously restored the tranny temporarily. I have the full Suncoast "extreme duty" rebuild kit and torque coverter in the garage just havent had time to install. I will say I couldnt get on the freeway out of fear the tranny wouldnt shift or it would go into limp home mode (not shifting into overdrive). Simply installing the SCT (in economy mode) has allowed me to remain driving it until it is repaired and I can spin the tires again without worries, (yet LOL). Before I put it on the blocks for the tranny I am going to put in the max power mode and scream it. I will say with the speed limiter removed 100 mph + is easy to do. Seems like reaching the 120 mark pretty easily even in the economy setting.
...don't forget, you are going to have to completely go through the transmission when you put the kit in to remove all the shavings/etc. that you have generated from smoking the clutches. Don't just pull the old packs out and put the new ones in. Treat it like a complete rebuild.
I have the Edge Juice/Attitude on my 2004 F250 Lariat FX4 (w/6000miles). I presently have it in the shop for a rear transmission leak. The dealer just called me and told me there were doing a recall fix on my reverse planetary gears. As far as the Edge unit it workes great on 1-3 stages, I really have not done much with the 4th and 5th stage.
The tranny will be spotless when thru! If you are running the Edge, get the SCT, do not pass go! I can not stress the importance of modifying the shift behavior enough. I do have a very heavy right foot if that makes any difference.
Superchips custom tune. It is a programmable unit that you can vary many parameters. Traction control, speed limiters, shift patterns, the list is alot longer and it does have power if you want it even without the Edge. If I had to do it again, I would start with the SCT. Motorhaven was very fast in delivering it to me (2 days with a few custom parameters).