I'm new to this forum and just wanted to send a shout-out to Shawn at SSI. I received my tunes with in 1 hour of ordering them for my Ecoboost. I'm pretty well versed in tunes as I've pretty much have had all my vehicles tuned. As an owner of course you have certain things to look out for and always be on the lookout for anything out of the ordinary. I also own a 2013 Shelby GT500 with a Revan Racing 13-6 package tuned by Jon Lund with 692 rwhp. Shawn answered all my questions-prolly I'm the pickiest customer he has had-lol- as I ask many questions. I'm pretty safe with my vehicles as I know if you decide to play, sometimes you gotta pay. Both tunes have made my truck an animal. I just run short sprints on my vehicles and maintain them extremely well. Both tunes have had no detonation whatsoever and I;m extremely happy. Gapped my plugs at .28 and all is well. Once again, Shawn, thanks for your EXCELLENT customer Service-I'll refer to you for my truck tuning needs!!!!