its about the tune on the tuner not the tuner itself that really matters. The tuner will be the item that puts the tune on the car~ so the brand only matters in terms of what params it can update.
I would go with SCT XCal 3 tuner or what ever the current variation of that is. Call them and talk to them about the options and why the different prices other than some tuners work with certain years only etc. They also have a forum on here you can post questions for them on.
__________________ 2003 Cobra Vert (Redfire) #3938 of 5082 @ 05/27/2003
472rwhp/493rwtq -Modification List - Dyno Sheet 2012 Mustang 3.7L M6 (Kona Blue) 2011 Ford Edge Sport (Red Metallic)