I got my Edge Pwer Programmer upgraded to Gryphon. I was happy with the Edge but installed K&N CAI. I didn't even wait to see if the Edge would work with the CAI, but I can tell the Gryphon brings the RPMs up a lot quicker, even at normal driving. But when merging onto the freeway, its amazingly quicker to speed than anything I experienced with the Edge. So anyone curious about getting one you won't be dissapointed.