Have a co-worker who outright bought a Gryphon tuner from PHP, so I bought a tune from PHP, loaded it onto his tuner and went to work. I've only tried three of them so far: economy, Atlas 40, and Atlas 80. I do not have mileage figures, as I just installed the tune yesterday, but after a few tanks I'll make a report. As for the rest? Well, the install went smoothly and quickly. Just follow the directions on the screen, wait less than two minutes, and it's tuned! Pretty damn simple. The most difficult part was pulling the relay....which isn't difficult at all.
Economy: no real noticeable increase in power (obviously), but you can definitely feel the reduced turbo lag. There's no more weird feeling of pushing the go pedal and not having the engine change RPM, or not having the truck move. Just a slight depressing of the pedal and off you go. It's not quite like a gasser, but it's a huge difference!
Atlas 40: All the low end stuff is much like above, but with a little bit extra. I would say slightly improved bottom-end feel than the economy. However, when you get on it, oh yeah....you can tell the 40 or so extra ponies are there! Smooth delivery too. No odd sudden burst of power.
Atlas 80: Low end is like the 40. Anything more than about 1/8-1/4 of the way into the pedal travel and you get a considerable increase in power without it being too quick of a delivery. Strong, smooth, linear power delivery. Feels very nice. With my around town driving, I found I actually had to change my driving habits, as I was accelerating much faster, and would wind up going too fast at times as well. As for top end? Well, the initial oomph from a stop with a WOT
run is stronger than stock for sure, but the real magic happens after about one second when the turbo finally spools up to full boost. I would think my girlfriend's "OOOF!" and "HOLY ####!" as she was slammed into the back of her seat should give you a hint. lol It's like someone put an angry honey badger in there when I tip that pedal now. Combined with my new exhaust, it's downright scary considering I have zero power mods besides this tune. And yet, it's a docile kitten until you want the tiger to roar. VERY happy with this tune for sure.
I also want to chime in on their customer service. I ordered it Thursday morning. As it's an electronic file, I would have thought I would get an email right back telling me how to download it. Nope. Friday at work I finally get a chance to follow up with them....just as I realized it was 5 minutes til they closed. Oops. First person I spoke to handled me. I didn't get transferred, didn't get put on hold. Angela even knew who I was before I even told her! Either I was the only one who ordered a tune or they have caller ID. lol Turns out, they need to know what serial number the Gryphon is in order to get it programmed properly, which is why there was a delay. See, they couldn't find my name in their system, which caused a hiccup....it wasn't purchased under my name. Well, I didn't have the serial number because it was at home and I was at work. No problem, she said. She said she would text me, and when I got home I could text her back the number, and she would set it up so I would be able to do the install first thing the next day. So not only did I get taken care of right when I called, I had one of their employees do some work from home, during her off time, to make sure I was satisfied. Can't ask for better than that!!